Some clocks have a way of drawing you in immediately, and this Vienna-style wall clock made by Friedrich Mauthe was one of those pieces. The moment I saw it, I knew it had presence—it becomes part of the room.
With its rich walnut case, turned columns, and the distinctive horse finial crowning the top pediment, the clock reflects the late nineteenth-century taste for decorative wall regulators. These clocks borrowed heavily from the famous Vienna regulators but were produced by German makers for a wider market.
When I purchased the clock, I inspected it carefully enough, and everything appeared to be intact. It was not until I had it safely home and hanging on the wall that something seemed slightly off.
The clock didn’t quite look balanced.
At first glance, it was difficult to say exactly why, but the longer I looked at it, the more obvious it became. A closer inspection of the lower portion of the case revealed the problem: one of the decorative finials at the base was missing. There was clear evidence that a piece had once been there.
The likely explanation came from the seller when I contacted them later on. At some point in the clock’s journey from Germany to Canada, the lower finial had been snapped off so the case could fit inside a suitcase. Whether the piece was discarded or simply lost along the way remains a mystery.
Fortunately, aside from this small detail, the clock remained remarkably original.
Still, once you notice something like that, it becomes impossible to ignore.
Finding a Suitable Replacement
My first thought was that replacing the missing trim piece should not be too difficult. There are a number of suppliers that specialize in clock case hardware and decorative parts, and I began browsing through the usual clock parts sites in search of something that would suit the design.
There were several options, but eventually I chose the finial you see here.
It is flat on one side and comes without a peg, making it adaptable for installation on a variety of cases. Most importantly, its shape complements the overall style of the clock without drawing attention to itself.
When restoring an antique clock, the goal is often to restore balance rather than create perfection. The replacement does not have to be an exact replica as long as it harmonizes with the original design.
In this case, I think it strikes the right balance. It may not be precisely what the factory installed over a century ago, but it looks convincing enough that even a careful observer might assume it has always been there.
Matching the Finish
The trim piece arrived unfinished, which meant it needed to be toned to match the rest of the case. Examining the clock more closely, it appeared to retain its original walnut finish.
With that in mind, I applied several coats of stain until the color blended naturally with the surrounding woodwork. Matching old finishes can be tricky, but patience—and a few test coats—usually brings things into alignment.
Once installed, the difference was immediately noticeable, and balance has been restored.
Restoring the Clock’s Symmetry
Seen from a couple of meters away, the clock now looks exactly as it should. The case once again has the visual symmetry that its original designers intended.
Small decorative elements like these finials may seem minor, but they play an important role in the overall composition of a clock case. Remove one piece and the entire design can feel subtly incomplete.
The “Horse Crown” Vienna Case Style
The decorative horse finial that crowns the pediment is what collectors often refer to as a “Horse Crown” Vienna-style case. While traditional Vienna regulators made in Austria tended to be somewhat restrained in their ornamentation, German makers frequently added dramatic sculptural elements to appeal to export markets.
The rearing horse was a popular motif at the turn of the twentieth century and symbolized strength, motion, and vitality—fitting imagery for a mechanical clock. Mounted above the pediment, the figure gives the clock a distinctive silhouette and immediately draws the eye upward.
Combined with the turned columns, carved mask, and stepped base, the horse crown transforms what would otherwise be a fairly conventional wall regulator into a much more decorative statement piece. Often, you will find clocks offered for sale missing this critical decorative piece.
The movement inside the clock was produced by Friedrich Mauthe, one of the largest German clock manufacturers of the late nineteenth and early twentieth centuries. Founded in 1844 in Schwenningen in the Black Forest region, the company became known for producing reliable, well-engineered movements that were exported throughout Europe and North America.
The Mauthe Movement
Many Vienna-style clocks from German makers used spring-driven two-train movements with time and strike trains mounted between brass plates. These movements typically strike the hour and half-hour on a coiled gong and are known for their durability and relatively straightforward construction.
Clocks like this were produced in large numbers between about 1890 and the early 1920s, when Vienna-style regulators were still very popular in homes and offices.
A Small Piece, A Complete Clock
From a distance of a few meters, the clock now looks exactly as it should have all along. The case once again has the visual balance that its designer intended.
The replacement may not be identical to the original piece that once adorned the base, but it blends naturally with the rest of the case. Unless someone knows exactly where to look, they would likely never suspect that a small piece of trim once disappeared somewhere along the clock’s long journey from Germany to Canada.
And like many antique clocks, it carries with it not only the passage of time—but a bit of history and a story of its own.
Related Articles
FMS Mauthe horse crown; servicing the movement; I have been putting off servicing this movement for a while, and a long time has passed since it was properly serviced. So, let’s get started.
Mauthe century old wall clock; The clock was advertised locally in the Truro, Nova Scotia area. The seller knew little about it beyond its provenance, but what he did share was an interesting, albeit brief, story.
Seven clocks in my collection that have family connections; not necessarily with my own family, but clocks that I am able to trace back through families, mostly in Nova Scotia (Canada). The stories are sad in some cases, but interesting nonetheless.
This two-weightGustav Becker regulator wall clock, purchased in 2016 as a “project clock,” proved early on to be more challenging than I thought. This is the third and final post in this series. For the story behind this clock and an analysis of the steps taken so far, the first and the second posts can be found hereand here.
Gustav Becker two weight regulator
After repeated but unsuccessful attempts to source correct replacement parts, the original movement was ultimately replaced with a complete 1918 P27 movement. That decision proved sound. The replacement movement has run reliably for more than nine years, making the recent strike issues described here less a surprise and more a predictable outcome of a long service interval.
The current issue is intermittent stopping during the warning phase, with the warning lever binding against the stop-wheel pin. In the absence of obvious breakage or damage, and given the movement’s extended service interval, the symptoms suggest accumulated wear rather than sudden mechanical failure.
With that diagnosis in mind, let’s now shift to systematic bushing work, careful reassembly, and methodical testing of the movement.
Polishing Bushings
Polishing the pivots prior to addressing pivot hole wear is a critical step, since even minor surface roughness can accelerate wear in otherwise sound bushings. Ensuring the pivots are smooth and true allows any remaining issues to be correctly attributed to pivot hole wear rather than the pivots themselves.
Taig metal lathe
The pivots were inspected and polished using my Taig metal lathe (above). An emery board was used to clean and polish each individual pivot. No pivot wear was expected, and none was found.
Bergeon Bushing Machine
Bushing Work
The next step is addressing wear, particularly on the strike side. Pivots in this movement are significantly smaller than those found in mass-marketed American movements. As a result, some of the pivot holes measure only 0.6 to 0.7 mm, requiring small 2 mm diameter Bergeron bushings.
This demands a high level of precision when drilling the plates, as accurate placement is critical. Off by a fraction of a millimeter, and the wheels will not mesh correctly. Two new back-plate bushings were installed on the second and third wheel pivot holes.
After checking the action of the wheels, I debated whether or not to include the fourth wheel pivot hole, which did not look as worn as the other two. I decided not to at this point. Interestingly, both replaced bushings showed punch marks adjacent to the pivot holes, a previous attempt to reduce pivot hole wear by closing them. Punching pivot holes might have been an acceptable practice years ago, but not today.
Reassembly
Working with small pivots presents its own set of challenges. There is always the risk of a bent pivot. Now, it could have been me, or it might have been there for quite some time, but I noticed a slightly bent pivot on the flywheel. Straightening a bent pivot is not for the weak of heart. A broken pivot can be a catastrophe.
Can it be fixed? Yes — and I have done pivot work in the past — but it’s something best avoided whenever possible. I have a staking tool specifically for correcting bent pivots, and I did my best to straighten it. I also have the original movement, so I could have used the fly from that movement if my minor repair had gone sideways.
Other than the minor hiccup described above, assembly went as planned.
Have I ever left a part out? More than once. I’ve put everything together only to discover the hammer arbor looking up at me as the last part in the bin, practically saying, “You forgot me.” Not this time.
Aside from the winding drums, there are only 6 wheels and the fly. The strike levers are on the outside of the front plate. Below the large hour wheel on the front plate are two smaller gears that must be timed. Curiously, there are timing marks on the bottom of the gears, so, using a black marker, I indicated the timing marks on the top of the wheel. This aligns the movement for striking at the 12 o’clock position.
Otherwise, the stop wheel should be very close to 12 o’clock, and the gathering pallet is positioned to clear the rack. Next come the various levers and the taper pins to keep them in place.
Testing
I have five testing stands, but none that accommodate a Vienna Regulator, so the movement was returned to the case for testing. During the testing period, I did not attach the hands or the dial.
With the striking issues finally sorted out, the clock is now running as it should — steady, reliable, and doing exactly what it was meant to do. As of this writing, it is on its second 8-day cycle and keeping time within a few seconds per hour.
Final thoughts
It now seems likely that wear on the striking side lay at the heart of the problem, and those issues have finally been addressed. As with any clock repair, time itself will be the true judge, but for the moment, all signs are encouraging. With a little luck, it will settle in and run contentedly for many years to come.
This has always been one of my favourite clocks in the collection and one that I keep running daily, so it was genuinely disheartening to see it silent for the past few months. I tried every reasonable adjustment to coax it back to life without dismantling the movement, but in the end, there was no substitute for proper disassembly and servicing. Sometimes a clock simply tells you when it is time to do things the right way.
I will let it run through another full eight-day cycle, make any final adjustments that may be needed, and then refit the dial and hands — hopefully marking the return of a familiar and welcome presence in the room.
Understanding pivot wear and bushing wear Part II; bushing involves replacing worn brass around a pivot by drilling a new hole and inserting a new bushing, either using a bushing machine or hand tools. The two articles walk the reader through the process of bushing
Gustav Becker 2-weight regulator; 3 years later; I said in 2019, “Clock collectors usually pride themselves in having at least one Gustav Becker (GB) clock in their collection. I have just one, but I am always on the lookout for another.” The article shows the clock on display in our living room.
Tools I Use; Tool I use plus additional information on clock repair.
If you’re a collector of any kind, you’ll relate to what I have to say in this blog article. In the early years of collecting anything, many of us follow a very familiar path. We begin with breadth rather than depth, acquiring whatever speaks to us, and for me, it was mantel clocks, shelf clocks, kitchen clocks, the occasional novelty piece, and just about anything that ticked.
One of the enduring truths about horology is that a clock collection, much like anyone who collects, is never static. It ebbs and flows, expands and contracts, and evolves in quiet harmony with the collector’s own journey. Over time, clocks are added, sold off, traded, gifted, or, when age and wear have had their final say, parted out or retired completely. In this way, a clock collection behaves much like the history of clockmaking itself—constantly in motion, shaped by shifting tastes, new discoveries, and changing priorities.
The first antique clock I ever bought, 25 years ago, is still in my collection
But as time passes, so too do our personal preferences. For me, the evolution has been gradual. I now own far fewer mantel and shelf clocks than I once did. Instead, my interests have gravitated toward wall clocks—regulators, Vienna-style pieces, and distinctive works by specific makers, especially those connected to Canada’s own horological heritage. Collectors often narrow their focus as their knowledge grows. It is a natural growth.
Even recently, the changing nature of a collection becomes clear in unexpected ways. Just the other day, a clock enthusiast emailed me asking if I could measure the glass door bezel of a clock for a replacement piece of glass. Unfortunately, I couldn’t help because I had parted with that clock four or five years ago, even though I had written about it several times in blog posts. It was a reminder that clocks, like memories, pass through our lives and collections, leaving traces of their stories even after they’ve moved on.
The clock in question
This change is partly driven by experience. After handling clocks from different eras, regions, and makers—from the mass-produced American clocks of the early 1900s to the quieter Canadian ventures of the early 20th century—we start to notice subtleties: the quality of the movement, the style of the escapement, the character of the case. Some clocks speak to us in a lasting way; others pass through our hands like chapters in a book we enjoyed but will never reread.
A favorite clock in my collection
Practical considerations echo historical realities as well. Just as factories once adapted production methods to suit changing markets, collectors adapt to the constraints of space and lifestyle. Mantel and shelf clocks take up real estate. Wall clocks—particularly regulators and finer makers’ pieces—offer presence without clutter. The shift is natural, almost inevitable.
And then there is the human side of collecting. Some clocks are sold to fund the next important acquisition, just as workshops once sold older stock to invest in improved machinery. Some are gifted to friends or family, continuing a tradition of passing clocks from one generation to the next. A few, too worn or incomplete to justify further effort, end their journey—much as many historical clocks did when changing technology made them obsolete.
Clocks like this attractive Mauthe buffet clock were sold off to acquire new pieces
A living collection tells a story. A static one may be beautiful, but a changing collection reflects the realities of horology—shaped by new finds, practical decisions, sentimental choices, and the gradual shift of personal taste. A changing collection also keeps me enthused and energized.
In the end, our collections evolve as we do. They follow the contours of our interests, the limits of our space, and the discoveries that excite us. Change is constant—each adjustment bringing us closer to the clocks that truly matter to us, those that will remain as markers on our own timeline.
One clock that’s high on my wish list is the Arthur Pequegnat Regulator No. 1. It’s a single-weight, 8-day, time-only wall clock, and it’s a rare one. Every so often I’ll see one for sale, but the price tags are usually well out of my reach—for now, anyway.
Pequegnat as a clock company was Canada’s answer to the big American clockmakers, especially Seth Thomas. Their wall clocks often borrowed design cues from their U.S. counterparts, but Pequegnat also came up with some distinctive styles of their own. One thing they were known for was their use of quarter-sawn white oak. If you’ve ever seen the way the ray flecks shimmer in that wood, you’ll know why collectors admire it so much.
The Regulator No. 1 is often compared to the Seth Thomas Regulator No. 2. While Seth Thomas sold thousands of #2s into schools, offices, and railway stations across America, Pequegnat’s No. 1 didn’t reach the same production numbers. But here in Canada, it served the same purpose—and today it’s one of the most sought-after Pequegnat models. In fact, a well-preserved example will usually bring twice the price of a similar American regulator.
The photo below of the Regulator No. 1 was taken at The Canadian Clock Museum in Deep River, Ontario, back in 2013.
Arthur Pequegnat Regulator #1
The Pequegnat Story
Arthur Pequegnat was born in Switzerland in 1851 and came to Berlin, Ontario (now Kitchener) in 1874 along with his wife, parents, brothers, and sisters—a total of 18 family members. By the late 1870s, he was running a jewelry and watch repair shop, and before long, he and his brother Paul were in business together in Berlin. After about a decade, they each went their separate ways, both staying in the jewelry trade.
In 1897, Arthur took a bit of a detour and started making bicycles. That worked well for a few years, but as the market declined, he pivoted once again. By 1904, he was using his bicycle factory to make clock movements, marking the start of Canada’s best-known clockmaking venture. At first, local furniture makers supplied the cases, but Arthur eventually brought case production in-house.
One detail that helps date Pequegnat clocks is the town name. Berlin, Ontario, was renamed Kitchener in 1916 because of anti-German sentiment during the First World War. So, if a dial or movement is stamped Berlin, you know it’s pre-1916. If it’s marked Kitchener, it’s from 1916 or later. Of course, since many models were made for years, you’ll only get an approximate date—but it’s still a handy clue.
Arthur passed away in 1927, but his family continued to run the company until 1941. When brass became scarce during the war, production stopped and never started up again. The factory was demolished in 1964, and today all that’s left is a commemorative plaque in Kitchener—fitting recognition of Canada’s most famous clockmaker.
Where to See Pequegnats Today
If you want to see Pequegnats in person, TheCanadian Clock Museum in Deep River is the place to go. They have the largest collection in the country, and it’s well worth the trip.
The Canadian Clock Museum, Deep River, Ontario
On the East Coast, the Macdonald Museum in Middleton, Nova Scotia, has a smaller but very nice display too.
Macdonald Museum in Middleton Nova Scotia
My Own Collecting Dream
For me, the Regulator No. 1 is about as good as it gets in Canadian wall clocks. Is it the best Canadian clock ever made? No, it has its faults, but it’s got the look, the history, and the craftsmanship that make it stand out. I can’t quite justify the price of one right now (my wallet insists on reminding me of that), but that’s part of the fun of collecting—dreaming about the ones that might join the collection someday.
Who knows? Maybe one day I’ll stumble across a Regulator No. 1 tucked away in an antique shop or sitting quietly at an auction, waiting for the right bidder. Until then, it stays on my wish list—one of those “holy grail” clocks that keeps the hunt exciting.
Over the years, I’ve explored countless stories tied to the world of horology, but few carry the prestige, legacy, and craftsmanship of A.G.U. Lenzkirch, one of the oldest and most respected German clockmaking brands. While there is much more to say about this iconic name, I’ve prepared a brief summary—based on information provided by brand owner Jens of the Jens German Company—highlighting its rich history and significance in the world of fine clockmaking.
In an era when heritage brands are being revived and newly appreciated, the A.G.U. Lenzkirch trademark is now available for purchase. For those with vision—whether launching a new line of precision clocks or watches, honoring the legacy of Black Forest clockmakers, or building a collection rooted in history—this is a rare opportunity to own a name synonymous with excellence.
Lenzkirch factory 1920s
Serious offers are welcome. While past estimates placed the brand’s value between EUR 50,000 and EUR 80,000, Jens believes a more reasonable and fair offer can be negotiated. Naturally, any transfer of ownership must be completed formally through a lawyer or notary.
If you’re interested in acquiring this historic trademark, feel free to reach out with your offer. You can contact Jens through me. Perhaps, like me, you’ll recognize the potential to breathe new life into a name that once set the standard for German clockmaking.
This is a unique opportunity—one that doesn’t come around often.
The Lenzkirch Story
Aktiengesellschaft für Uhrenfabrikation Lenzkirch (Public Company for Lenzkirch) was founded in 1851 in the village of Lenzkirch in Baden by Eduard Hauser, who had trained in France and Switzerland. The company carried on the tradition of Black Forest clockmakers. Hauser, the son of a teacher, was born on August 21, 1825, and gained experience building music boxes under Johann George Schopperle. During this period, he developed skills in metalworking, precision mechanics, musical instrument design, and even music composition.
A catalog selection of regulator clocks
The firm became renowned for producing exceptionally fine regulators. Well into the 1920s, Lenzkirch was still crafting precision movements with compensated pendulums. Junghans eventually acquired the company, and the factory closed in 1932, a casualty of the collapsed wall regulator market.
Company History
The Beginning of a Clock Empire
Aktiengesellschaft für Uhrenfabrikation in Lenzkirch was the oldest clock factory among the Black Forest manufacturers. Founded by clockmaker Eduard Hauser and Ignaz Schopperle, a mechanical organ maker, the company began in 1849 in a modest workshop producing clock parts. These were sent to clockmakers for final assembly, a shift from the traditional practice where clockmakers produced every part by hand.
Precision regulators
Hauser and Schopperle aimed to introduce “serial assembly,” delivering compact, machined, and pre-assembled clock movements to clockmakers. This innovation marked a turning point in horological manufacturing.
The Growth of the Company
Hauser soon employed 14 workers using hand-driven flywheel lathes and other tools. He invested heavily in machinery, draining much of his capital, and faced payroll and operational expenses without a robust marketing network or distribution plan. Growth was slow.
On August 31, 1851, Hauser approached Franz Joseph Faller, Joseph Wiest, Nikolaus Rogg, and the brothers Johann Nikolaus and Paul Tritscheller. Together, they officially formed Aktiengesellschaft für Uhrenfabrikation in Lenzkirch. In 1865, their brother Albert Tritscheller joined to study international clockmaking practices. With new financial support and strong management, Lenzkirch flourished. Powered by two steam engines and equipped with a gold and silver plating shop and a tool-and-die workshop, the company achieved remarkable technical excellence. Secrecy was paramount—Hauser famously covered machinery with linen sheets to protect trade secrets from visitors.
Lenzkirch patent, 1881 for a gong support bracket
Delivering Clocks Becomes a Challenge
Eventually, Lenzkirch began full in-house movement assembly, with wooden cases imported and finished at the factory. The company’s reputation soared with the introduction of its German regulator, which won numerous awards in 1860–61. The Viennese-style wall regulator also gained popularity. The firm invested in R&D to develop durable mainsprings, both for its own clocks and others.
8-day regulators
However, transporting the growing volume of finished clocks became a major obstacle. Franz Joseph Faller, fluent in several languages, launched an aggressive marketing and distribution campaign. He circulated catalogs, sent representatives to international expos, and opened offices in Florence and Venice. But operations remained based in the Black Forest.
After years of lobbying, Faller secured a railway extension to Lenzkirch, and on May 21, 1887, the first train arrived. Tragically, during the celebration, Faller suffered a fatal stroke moments after delivering the welcoming speech.
The Rise and Fall of Lenzkirch
For over 80 years, the Lenzkirch Clock Factory employed thousands who took pride in its renowned craftsmanship. At its peak, the factory had over 600 workers and contributed to making Lenzkirch a wealthy town synonymous with high-quality Black Forest clocks.
Lenzkirch was also a pioneer in employee benefits. In 1858, it began offering medical insurance and a disaster relief fund. Despite economic downturns and the Franco-Prussian War of 1870, the company maintained its commitment to quality.
Yet competition grew. New firms with modern equipment and better capital reserves began to outpace Lenzkirch. The company, still operating with mid-19th-century equipment, struggled to adapt. In 1928, the Junghans brothers proposed a merger. The factory was dissolved in August 1929 and functioned as a Junghans satellite until 1932, before being sold to a beauty salon equipment manufacturer in 1933.
Classic styling by Lenzkirch
Even today, Lenzkirch clocks remain highly collectible. Many are listed on eBay and through antique dealers and auction houses worldwide. Known for their quality and precision, Lenzkirch clocks continue to capture the attention of horology enthusiasts. The company ultimately sold over 1,000,000 clocks, with each movement stamped on the back as a testament to its legacy.
Disclaimer | My Role in the Sale
If you have further questions concerning the sale, I can pass them on to Jens.
As I mentioned, if you’re interested in acquiring this historic trademark, feel free to reach out with your offer.
However, I want to make it clear that I have no personal interest in profiting from the sale of this brand. As I’ve mentioned to Jens, my role here is simply to help him amplify this information and share it with readers of this blog. There may be someone among you, or someone you know, who would be genuinely interested in acquiring and preserving this prestigious and historic clock brand.
For clock collectors, presentation is just as important as the clocks themselves. A well-arranged collection not only enhances a space but also invites conversation and appreciation. While some collectors prefer to distribute their clocks throughout their home, others opt to showcase them all in one dedicated space. Regardless of your approach, thoughtful arrangement can make a significant difference.
Seth Thomas in an entrance hallway
One general guideline is to avoid clustering too many clocks in one area, allowing each piece to stand out. However, if you prefer to group multiple clocks together, consider organizing them by maker, style, type, era, or country of origin. A collection arranged with a clear theme creates a cohesive and visually appealing display, whereas a more haphazard approach can feel cluttered and overwhelming.
Deciding How Many Clocks to Display
Many collectors set limits on how many clocks are displayed at one time—and how many are actually running. While I keep most of my displayed clocks running, I occasionally let some take a “break.” Changing a clock’s location from time to time can refresh a room’s look, though it’s important to remember that some clocks are sensitive to movement.
Ingraham Huron shelf clock on a Westinghouse floor model radio
For example, in one of my larger rooms, I have four clocks, but they are spaced out so as not to compete for attention. The most striking piece is a 2-weight Gustav Becker Vienna regulator from 1902—at 51 inches tall, it naturally commands the space. On another wall is a Arthur Pequegnat wall clock, an Ingraham shelf clock that sits on an old Westinghouse radio, and a 1996 Ridgeway tall case to complete the arrangement. The layout ensures that each clock is showcased without overwhelming the room.
Gustav Becker and Ridgeway (foreground)
Placement Considerations
Some collectors prefer to dedicate a single room to their clocks, creating a focused display, while others, like myself, enjoy integrating clocks throughout the home. Of course, what works best also depends on what your partner is willing to tolerate!
In my entrance hallway, for example, my Seth Thomas Regulator #2 greets the visitor to my home. Also in the hallway is an Arthur Pequegnat Canadian Time wall clock.
On the second floor, a Pequegnat Brandon schoolhouse clock is positioned where it can be admired, but in keeping with a simple household rule—no striking clocks upstairs to ensure a peaceful night’s sleep.
In the dining room, a Gilbert shelf clock sits atop a 1947 Stromberg Carlson console radio, blending vintage charm with functionality.
The Art of Thoughtful Display
Arranging a clock collection takes more than just placing timepieces on a shelf—it requires an eye for balance, harmony, and practicality. A well-considered display not only highlights the beauty of each clock but also enhances the overall aesthetic of your home. Whether you prefer a carefully curated showcase or a more casual arrangement, the key is to strike a balance between functionality and visual appeal.
Our Kitchen clock
How do you display your collection? Do you prefer grouping clocks together, or spreading them throughout your home? Let me know your thoughts!
Have you ever come across the term FrankenClock in the world of clock collecting? If not, let me explain.
Imagine purchasing a clock, hoping that every mechanical component, finial, and piece of trim is original, only to later discover—through experience, research, or sheer luck—that it isn’t. How would that make you feel? Disappointed? Cheated? Many collectors have faced this reality. A clock with non-original or mismatched parts is often referred to as a FrankenClock.
A Case in Point -A Gustav Becker Two-Weight Vienna Regulator
To illustrate, let me share the story of my own Vienna regulator clock that I purchased in 2016. At a glance, it presents very well, keeps excellent time, and has undergone necessary restoration, thorough cleaning, oiling, and case repairs. But is it original in every way? No, not by a long shot.
Gustav Becker Vienna Regulator
When I purchased this clock, it was sold as a “project clock,” with the seller making no claims about its originality—a fair and transparent transaction reflected in what I determined to be a fair price in 2016. Over time, I uncovered several details that revealed its true history.
The following is what I now know concerning my Gustav Becker 8-day time and strike wall clock
The Glass Panels
When the clock arrived, I had no way of knowing whether the glass panels—the front door glass and side lights—were original. It became a moot point when they shattered during shipping. The case also sustained damage, though not severe enough to require new parts—mostly just glue failing and pieces coming loose. When I took the case to a glass installer, they asked two key questions: Why is the side glass thicker than the front glass? And why were finishing nails used to secure the panels? These details cast doubt on whether the glass that came with the clock was original. In any event, the panels were replaced with new glass.
What I had assumed to be original was, in fact, another chapter in the clock’s long journey.
The Weights
At first glance, the clock’s two weights appeared identical. However, closer inspection revealed a subtle difference in their hook designs. Given Gustav Becker’s reputation for precision, it seems unlikely that the factory would have issued mismatched weights. This suggests that at least one weight is a replacement (and probably both, for that matter).
The Movement
The movement appears appropriate for the period and case, but is it original? The seller had disclosed missing parts, including the star wheel/snail, strike hammer, and rod. Additionally, the gathering pallet was bent, preventing the strike side from functioning. It was evidently harvested for parts.
Determined to restore the clock, I sourced what I thought was an exact donor movement from Poland—specifically from Gustav Becker’s Braunau factory (as opposed to the Silesia factory). However, despite being only 16 years newer, the donor movement had subtle differences: thinner plates, redesigned lever springs, a slightly thicker minute arbour shaft, and incompatible strike components. Unfortunately, the replacement parts were not interchangeable with the original movement.
Though disappointed, I decided to swap the entire movement, though I kept the original movement for transparency. If I ever sell the clock, I will disclose this change along with all other modifications.
It gets better (or worse).
Replacement hands and brass bezel
Other Replacements and Repairs
The spun brass dial bezel is a period-correct replacement which I sourced because the original was bent during shipment.
Some trim pieces, such as the bottom finials may have been added later, though their exact origin remains uncertain.
The bottom center finial is a replacement. Interestingly, it has wormwood holes, whereas the case itself has no traces of worm damage.
The clock originally had Ogee clock hands rather than Vienna regulator hands. Ogee clock hands are not correct for this clock. After an extensive search through suppliers in Canada, the U.S., and Britain, I was surprised by the limited availability of Vienna regulator hands. Eventually, I sourced a set from Poland. Although they are not historically accurate and not the design that might have been on the clock face at the time, I eventually settled on sleeker hands that look appropriate and will suffice for now.
Lessons Learned
I hesitate to dig any deeper into this clock, fearing I will uncover even more shortcomings.
Despite its mix of original and replacement parts, this clock remains a valuable learning experience.
Many collectors unknowingly own FrankenClocks—clocks that have been altered with non-original or mismatched parts. While reputable auction houses often disclose repairs, replacements, or questionable components, online listings are far less reliable. Sellers on popular online marketplaces may not always be aware of a clock’s history or may choose to omit important details.
When buying a clock, especially online, approach with caution. Examine all available photos carefully, looking for inconsistencies in the case, dial, hands, movement, and other components. Ask the seller direct questions about originality, repairs, or missing parts, and request additional photos if something seems unclear. If possible, compare the clock to known examples from reference books, collector forums, online image searches, or auction archives.
Be particularly wary of listings that provide vague descriptions, low-quality images, or no mention of service history. A clock that looks pristine may have been heavily restored, while one advertised as “original” may contain replacement parts that significantly affect its value. If purchasing in person, inspect the clock thoroughly—check for signs of “over-restoration”, mismatched components, or modern hardware securing old parts. If I see a Robertson or Phillips screws on a 100+-year-old clock I immediately back away.
Ultimately, knowledge is your best defense. The more informed you are about a particular clock model, the better equipped you’ll be to recognize potential red flags before making a purchase.
Allow me to take 5 minutes of your time to watch my video of 19 wall clocks in my collection. Each wall clock is identified by its maker, where known. The video features background music throughout, with a brief segment of sound highlighting the winding of a Mauthe wall clock. Otherwise, there is no dialog.
My only requirement is that the clock must be in good working order and have an appealing appearance.
19 wall clocks in my collection
My entire collection consists of 85 clocks. Many are on display in my home, and some are in the process of restoration or repair.
Thomas Tompion (baptized July 25, 1639– died, November 20th, 1713) was an English clockmaker and watchmaker, often referred to as the “Father of English Clockmaking.” He is renowned for his exceptional craftsmanship and significant contributions to the development of clockmaking during the late 17th and early 18th centuries.
In fact, Tompion is the most celebrated of all English clockmakers.
Thomas Tompion
Born in Bedfordshire from a family of blacksmiths he moved to London in 1671 and was soon employed by the physicist Robert Hooke. Hooke was credited as one of the first scientists to investigate living organisms at the microscopic level. Hooke introduced him to leading scientists and royalty and as a result, Tompion received commisssions from Charles II, William III, and Queen Anne.
His business was based on Water Lane, Fleet Street, and he built a reputation for quality and ingenuity across Europe.
Tompion tall case clock at the Britsh Science museum
Tompion’s clocks and watches were known for their accuracy, elegance, and innovative design. He played a key role in advancing the precision of timekeeping, particularly through his work on escapements and the introduction of the balance spring in watches, which greatly improved their accuracy.
Thomas Tompion time and strike tall case clock – the British Museum
Tompion produced a wide range of timepieces, including table clocks, longcase clocks, bracket clocks, and pocket watches.
His clocks were often highly decorative, featuring intricate engravings and fine materials.
Table or bracket clock made by Tompion for Queen Anne, British Science Museum
He was also a mentor to several important clockmakers, including George Graham, who later became a prominent figure in the field. Graham invented the deadbeat escapement, a crucial improvement over previous escapement designs, allowing for greater accuracy in clocks. Two clocks in my collection, an Arthur Pequegnat Moncton and a Seth Thomas #2have Graham deadbeat escapments.
Tompion was also Master of the Clockmakers’ Company from 1703 to 1704 (London). He made regulators for Greenwich Royal Observatory – one of the most prestigious commissions of his career.
While visiting the UK this spring, I stopped by Westminster Abbey, where Tompion is laid to rest.
Westminster Abbey
It is fitting that Graham is also buried in the same place.
Located at Westminster Cathedral
Tompion’s work is highly prized by collectors, and many of his clocks are now housed in museums and private collections around the world.
Having a Tompion clock would be a real treasure, but it’s far beyond my budget. The nearest I’ll get to a Tompion clock is seeing one in a museum.
During the winter months, I teach part-time in a justice program at our local community college. The other day, I had a former student visit this blog and she commented on her admiration for one of my clocks, specifically a time and strike crystal regulator by Ansonia.
Thanks, Cate for allowing me the opportunity to profile this clock once again!
American-made 4-glass clocks are commonly referred to as crystal regulators
First a history of how I acquired the clock and what I know about it. While exploring an antique shop in Bloomfield, Ontario, my wife came across an intriguing find – an antique glass-cased brass time-and-strike American-made clock with an open Brocot escapement, manufactured by Ansonia.
This particular clock, featured in the 1905 Ansonia catalog under the name “Prism,” was priced at $29.00, a substantial sum for its time. It was the simplest design in the crystal regulator line and the lowest-priced model.
Collectors in the clock world frequently have discussions regarding the proper name for these clocks. Are they four-glass clocks or crystal regulators?
Ansonia Crystal Regulatorshowing the Brocot escapementwith jeweled pallets
A “four-glass clock” is a broader term referring to clocks with glass panels on all four sides, while a “crystal regulator” is a more specific subtype of mantel clock known for its transparent glass panels and often associated with high-quality craftsmanship. The primary differences lie in the design, purpose, and origin. The term “crystal regulator” is used specifically for American clocks that fall under the broader category of four-glass clocks, distinguished by transparent panels on all sides. Conversely, a French-made clock with a similar appearance is generally referred to simply as a four-glass clock.
The pendulum vials contain nickel slugs
While both types typically feature Brocot escapements, there’s a notable distinction in the pendulum design. Many four-glass French clocks incorporated mercury-filled pendulum vials, whereas American crystal regulators utilized nickel slugs within transparent vials.
American Crystal Regulators were essentially replicas of French regulators, boasting similar design elements such as a stylistic gong block, visible Brocot escapements, round movement plates, and beveled glass panels. However, they were an economical alternative to the French clock.
French regulators, crafted by high-profile makers like Japy, Marti, Vincenti, and Mougin, were highly esteemed and often included mercury pendulums. In the American market, Ansonia and Seth Thomas were prominent manufacturers of such clocks. They were not built to the higher standards of a French clock and were priced accordingly. Nonetheless, American Crystal Regulators have become sought-after by clock collectors.
American-made 4-glass clocks are commonly referred to as crystal regulators
The four glass panels of this clock are in very good shape, with only a small corner chip on one panel, which I discovered a few days after purchasing the clock. Fortunately, the chip is not visible from the front. The glass was likely damaged during a servicing session.
Overall, the clock is in good condition for its age and was made somewhere between 1905 and 1910. The brass, though tarnished, cleaned up nicely with the use of a cleaner. The brass was also lacquered to maintain its shine and protect it from deterioration.
On the bench and before disassembly
Upon acquiring the clock, it was not in running order, and my initial evaluation suggested that all it might require was a thorough cleaning and some bushing work. There was certainly a small amount of wear and the movement required 5 bushings, all on the front plate.
After disassembling, cleaning, and addressing wear, it ran without issue. Now, it’s one of several clocks that run weekly.
I would have to say it is one of the more unique clocks in my collection.
One clock that holds a special meaning and one that I would like to add to my collection someday is the Arthur Pequegnat Regulator #1, a single-weight eight-day clock. This clock is truly a rare find, though the prices I’ve encountered thus far are a bit steep for my budget.
Arthur Pequegnat Regulator #1, photo taken at The Canadian Clock Museum in Deep River Ontario, Canada
The Arthur Pequegnat Story
The Arthur Pequegnat clock company was a formidable contender to American wall clock manufacturers. While their wall clocks often mirrored American models, some of their designs boasted a unique touch. The company favoured the heartwood of quarter-sawn white oak for their cases, showcasing the stunning visual appeal of this choice of wood.
The story of the Arthur Pequegnat clock company is one marked by distinction. Born in Switzerland in 1851, watchmaker Arthur Pequegnat immigrated to Berlin, Ontario, Canada, in 1874 with a substantial entourage of 18 family members. Initially establishing himself as a jeweler and watch repairman in the late 1870s, Arthur and his brother Paul operated a successful shop in Berlin, Ontario, by the mid-1880s. After a decade, the brothers pursued independent ventures, each managing prosperous jewelry shops in Southern Ontario.
In 1897, Arthur expanded his Berlin Jewelry shop to include bicycle manufacturing. However, as the demand for bicycles waned by 1904, he shifted focus back to the clock industry, manufacturing his clock movements at his Berlin Bicycle Manufacturing plant. Initially, wooden clock cases were sourced from local furniture makers, but over time, Arthur began crafting his own cases.
Despite Arthur’s passing in 1927, the company, guided by family members, persevered until 1941. The scarcity of brass during the war effort led to the company’s closure. The factory, where these exceptional timepieces were crafted, never produced another clock and was eventually demolished in 1964. Today, Kitchener pays tribute to this great clock manufacturer with a commemorative plaque.
The renaming of Berlin to Kitchener in 1916, amid World War I anti-German sentiments, serves as a helpful dating marker for Pequegnat clocks. Movements or dials marked “Berlin” indicate a clock dating to 1916 or earlier, while those marked “Kitchener” are from 1916 or later. Due to the long production life of many clocks, precise dating of Arthur Pequegnat clocks remains challenging.
For a fascinating journey into the world of Arthur Pequegnat clocks, The Canadian Clock Museum stands as a treasury, boasting the most extensive museum collection of Arthur Pequegnat clocks in Canada. Additionally, the Macdonald Museum in Middleton, Nova Scotia, offers a modest yet noteworthy collection of Pequegnat clocks—a worthwhile stop for those journeying through the Canadian province of Nova Scotia.
The Regulator #1
The Regulator #1 is frequently likened to the Seth Thomas Regulator #2. While the Seth Thomas counterpart found widespread use in offices and rail stations across America, the Arthur Pequegnat Regulator #1, though less prolific, met the demands of many businesses in Canada.
The dial removed showing the movement
Although sought after by collectors the Regulator #1 has interesting technical quirks according to Canadian clockmaker John Plewes, author of Repariring & Restoring Pendulum Clocks. Plewes cites three design issues with the clock. Two are minor quibbles but the third involves the weight. Despite its similarity to the Seth Thomas Regulator #2, it requires a heavier weight (1/2 lb more) to drive it reliably. A lighter weight such as the one found on the ST#2 causes the clock to stop after a short period particularly when the minute hand is rising. The hands are simply too heavy for the clock as they influence the force applied to the train.
Plewes, therefore, takes issue with Arthur Pequegnat’s claim that the #1 is the “finest office clock made”.
Lower section of the clock case
Regardless, the clock is highly sought after among Canadian collectors, and commands a premium, often doubling the price of similarly styled clocks from well-known American counterparts such as the Seth Thomas Regulator #2.
In this post, I describe an unusual issue when relocating my mini Vienna Regulator clock. Out of all my clocks, this one tends to be the most sensitive when I move it to a different location in my home. I’ve previously shared my experiences with this clock because it’s not the first time I’ve encountered issues.
Medium-sized Vienna Regulator C.1870
Exploring a brief history of Vienna Regulators provides insight into why this clock is a significant milestone in horological evolution.
The Vienna Regulator clock, also known as the Vienna wall clock, is a type of precision pendulum clock that originated in Vienna, Austria.
The style and craftsmanship of Vienna Regulator clocks are often associated with exceptional quality and precision.
The development of the Vienna Regulator clock was influenced by several factors. One of the key factors was the rising demand for accurate timekeeping during the Industrial Revolution. Vienna, as a center of craftsmanship and technological innovation, played a vital role in meeting this demand.
Vienna regulators are distinctive and typically have a slender wooden case, which houses the pendulum and the clock mechanism. This design allowed for a longer pendulum, resulting in greater accuracy. The movement was typically attached to a frame on the backboard of the case by a keyhole design which allowed the movement to be lifted and removed from the case for servicing. The pendulum was often enclosed in a glass door or window, allowing the movement to be admired from the front and side panels while protecting it from dust.
Vienna Regulator dial
The cases, made of various types of wood such as walnut, oak, or mahogany, were often finely crafted with decorative inlays, carvings, or veneers. The clocks featured a white enamel or porcelain dial, usually adorned with Roman numerals and ornate hands.
The movement of the Vienna Regulator clock was powered by weights suspended on cables or cords. The weights (up to three) were typically wound up once a week, providing the necessary power for the clock to run accurately. While the majority of these clocks were designed to operate as 8-day runners, some were specifically engineered to run for 30 days and longer.
During the 19th century, the Vienna Regulator clock underwent several design changes. The earlier models, known as “Vienna Regulators of the Biedermeier period,” were characterized by a simpler and more classical style. Later models, influenced by the emerging Victorian and Rococo revival styles, featured more elaborate ornamentation and decorative elements.
While the popularity of the Vienna Regulator clock declined in the early 20th century with the advent of more modern clocks, it remains valued by collectors and enthusiasts today.
It’s also worth noting that the term “Vienna Regulator” typically denotes a clock style commonly manufactured in Germany and Austria from approximately 1804 to the end of the 19th century, even if it wasn’t necessarily crafted in Vienna.
But let’s go on.
What is making this clock stop?
During an unusually cold winter day, a substantial plumbing problem caused significant leakage from a ceiling pipe in our family room. To address the damage, we had to replace the pipes and patch the ceiling. During the repairs, we decided to refresh the room’s decor, taking the opportunity to make a few changes. As part of the update, we moved our Vienna Regulator clock from upstairs to the family room to showcase its elegance.
After running flawlessly for a few days, the clock stopped. I checked the clock’s beat, adjusted it, and confirmed its proper vertical orientation. This resulted in the clock running for a few hours before encountering another stoppage.
Suspecting a tangled cable issue which could cause a loss of power to the movement, I took the movement out of its case and carefully rewound the cable onto its take-up reel but this did not resolve the issue.
Could the problem be related to wear? I removed the movement from its case and disassembled it, inspecting for any signs of wear including bent arbors, or damaged or worn teeth. However, I found no such issues. In fact, the movement looked very clean, and the oil in the pivots appeared to be in excellent condition.
Vienna regulator movement, very clean with no issues
After reinstalling the movement into its case and reattaching the weight and pendulum, I noticed a slight wobble in the pendulum, that was not visible from afar.
Out comes the movement which consisted of removing the weight and unhooking it from the frame posts. Upon reexamining the movement, everything appeared to be in proper order. In most clock movements the suspension spring is physically attached to the movement. In clocks of this type, the pendulum rod is attached by the suspension spring to the backboard frame, and there could be a tendency to overlook inspecting the suspension spring as the cause of the stoppage.
This time, the problem was identified as a slightly kinked suspension spring. Lacking a spare, instead of replacing it, I removed the pendulum assembly from its case and used the shaft section of a small screwdriver to smooth out the kink. A temporary fix, to be sure, till I source the correct spring for this clock.
Some clocks can be temperamental and a clock that works fine in one location may not work in another. However, it would appear that moving the clock from one location to another caused a deformity in the suspension spring. So, the fault was mine.
After smoothing out the suspension spring it runs better
My other Vienna Regulator keeps ticking without a hitch, unlike this clock which tends to act up when moved. It’s running fine now and will stay at its new location which is back upstairs.
In 2018, while exploring Ontario (Canada), I came across a Seth Thomas Regulator #2 in an antique shop in Bloomfield, just a short drive from Picton, a prominent center in Prince Edward County known for its numerous wineries.
I had my eye on this clock when I viewed it online over the summer and carefully contemplated the purchase before finally acquiring it in the fall of 2018. These clocks are somewhat rare to find, but the price was reasonable, and the clock itself was in very good condition.
Seth Thomas Regulator #2
The Seth Thomas Regulator #2 was recognizable at one time as one of the most commonly seen regulator clocks in America. It graced many railway stations across both the US and Canada throughout the last century, a testament to its accuracy and reliability. It is a sturdy, precise, well-crafted timepiece that Seth Thomas produced from 1860 to 1950, an impressive 90-year production run. Few clocks can boast such longevity, making it an iconic American clock that every serious clock collector desires.
The design of the #2 remained largely unchanged over the years, but certain design characteristics can help in dating a specific clock. The identification guide below outlines characteristics of the dial and case that assist in estimating the year of manufacture. A clock colleague cautioned me against placing excessive trust in the chart, but I am satisfied with using rough estimates.
Seth Thomas Regulator #2 ID chart
With the exception of its distinctive base, most #2s produced after the earliest versions had the pendulum mounted in the rear. The chart also mentions a limited reissue in 1976. While the reissue is well-crafted and aesthetically pleasing, most Seth Thomas enthusiasts would argue that it doesn’t quite compare to an authentic Regulator #2, and the prices for these versions reflect that sentiment. Nevertheless, those who own the reissue appear to be satisfied with their acquisition.
According to the chart, my clock was likely made between 1922 and 1929. It features a base reminiscent of the earlier 1860 version of the #2, Arabic numerals, and spade hands. The bow tie connecting the wood dial bezel and the drop is a single piece (earlier versions had a three-piece bow tie). The clock has a second hand positioned 2 inches above the center cannon, but it’s not a true second hand; it runs off the escapement, taking 80 beats to complete a “minute.” Standing at 36 ½ inches tall, it’s veneered in mahogany.
The bottom right of the movement bears the stamp “77A” with the letter “K” beneath it, although it lacks other distinctive markings. Unlike some versions of the 77 movement that have lantern pinions, this one has cut pinions. Whether one type of pinion is better than the other is open to debate.
Seth Thomas Regulator #2 showing some marks on the face
As with any item nearly 100 years old, there were some issues with the clock. There is minor scuffing on the dial, no label, a finish that has lost its luster, and paint splatter on the top of the case (though not visible from most any angle). Taking down a clock while painting a room is a simple decision in my view, but some individuals prefer painting around it.
I transported this clock from Ontario to Nova Scotia by car, and removing the pendulum for transportation is not a straightforward process. If you are familiar with the pendulum arrangement on a typical weight-driven Vienna Regulator clock, this one is similar. Removing the weight is as simple as unhooking it from the cable wheel. Like Viennas, the pendulum is hung behind the movement, and both the weight and movement must be removed to access the pendulum since the pendulum must be removed for transport.
Seth Thomas #2 movement in place
The steps to remove the pendulum are as follows. First, the clock hands are removed. The minute hand is secured with a nut, which must be released. The second hand is a friction fit and can be pulled straight off.
There are eight small screws holding the dial in place. Once the dial is off, two larger screws on the wooden second-hand rail can be removed to access the movement. Four cylindrical column posts secure the movement in place; unscrewing them, starting with the bottom two, allows the movement to be lifted/pulled out. Once the movement is out, the pendulum can be unhooked from its suspension spring. The entire process takes less than five minutes.
The trapezoid 77A movement in this clock appeared clean when I first opened the case. There were signs of previous work, such as punch marks around some pivot holes, a common practice frowned upon today. The deadbeat escapement was in good condition and did not require adjustment. Otherwise, the movement looked to be in very good condition.
Seth Thomas #2 with escapement removed. Observe the numerous punch marks
Getting the clock to run reliably presented a challenge, and it took about a week to troubleshoot and resolve the issue. It eventually became clear that the issue lay in the positioning of the hands with the second hand obstructing the hour hand. I remounted the dial ensuring there was sufficient clearance between the second hand and the hour hand and it ran smoothly thereafter.
Regulating the clock is a relatively straightforward process, achieved by adjusting the rating nut on the bottom of the pendulum. This clock must be level and properly aligned to function correctly.
Time for servicing
In the spring of 2021, the clock began to stop intermittently. It would operate for 5-10 minutes before coming to a halt. I had replaced the suspension spring two weeks earlier and thought I had addressed the issue but clearly, I had not.
Seth Thomas #2 suspension spring
The clock’s apparent simplicity masks the tight tolerances it requires, and any signs of wear have the potential to cause the clock to cease functioning. Despite being a time-only movement with few gears I do not believe this is a good movement for the novice clock repairer.
I installed three bushings on the back plate; the second, and third wheels, and the escape wheel, and two on the front; third wheel, the escape wheel, and the verge pivot hole front plate.
Seth Thomas #2 movement
At the time I also discovered a slightly bent third-wheel arbour that did not take much effort to straighten.
While the movement was out of the case I replaced the maintaining power spring. I’m unsure if I’ve resolved the clunking sound the clock produced when I wound it previously because I now must turn the key crank in the opposite direction for a quarter turn to adjust the maintaining spring to avoid the clunk.
I also replaced the old cable with a 3/64-inch brass-weight cable. One aspect of the brass cable that I particularly appreciate is its nylon core, which prevents it from coiling. Polishing the pendulum bob and weight enhanced its overall appearance.
Since 2021 it has been running very well and keeping accurate time.
While these clocks were constructed robustly and designed for demanding environments, running for extended periods without the need for maintenance, there is still a requirement for periodic servicing. When I obtained the clock, it quite likely had gone without servicing for a considerable duration, and the maintenance performed in 2021 was certainly long overdue.
Seth Thomas Regulator #2
Still, I am happy with the purchase of this clock. At present, it adorns the front hallway of our home, adding a touch of elegance to the entrance.
This clock is a splendid addition to our home’s front entrance, with a rich and storied history. While its exact whereabouts over the past 100 years remains a mystery, it remains a remarkable clock.
The popularity of Vienna Regulator clocks began to wane towards the early part of the 20th century. The more modern and less ornate design of the box clock appealed to changing tastes and preferences after World War I, leading to the gradual replacement of Vienna Regulators with box clocks. The box clock design stood the test of time, enduring for over 30 years.
Gustav Becker weight-driven Vienna Regulator
The German “box clock” is a type of antique clock that became popular in the early 20th century, particularly in the period following World War I. These clocks are sometimes also referred to as “box wall clocks” or “wall box clocks” due to their design and placement on walls.
German box clock by Mauthe
Key features and characteristics of German box clocks are its design and appearance since the box clock represents a departure from the designs of the Vienna Regulator clocks. Instead, box clocks embraced a more minimalist and utilitarian design. They typically have a simple rectangular or square wooden case with clean lines, a simple crown, glazed features and often lack the intricate carvings and embellishments seen in earlier clock styles.
Numerous German manufacturers, such as Mauthe, Gustav Becker, The Hamburg American Clock Company, Muller, Hermle, and Kienzle, were involved in the design and construction of box clocks.
U M Muller box clock
Box clocks employ a weight-driven mechanical movement or a spring-driven movement. For the cost conscious, spring-driven box clocks were within the budget of most households.
Whether the movements use weights or springs to power the clock’s operation, they require periodic winding to keep accurate time. The run times were typically 8 days though some were made to run for 14 days. The movement is always housed within a wooden case and is typically viewable through glazed side ports.
Kienzle time and strike box with round top
The clock dials on box clocks are typically white or silvered dials with either Arabic or Roman numerals to indicate the hours. Most box clocks have simple black spear or spade hands for better contrast and easy readability.
Mauthe box clock
A prominent feature of box clocks is the pendulum, which might be quite plain or ornate, which swings beneath the clock’s dial and is visible thorough a bevelled glass panel. The pendulum’s length is adjusted to regulate the clock’s timekeeping accuracy.
Some box clocks include a chime feature that makes a musical tone on the quarter hour while other have a strike feature that rings the hour or half-hour. A clock face with three winding arbours signifies a chiming clock, whereas a clock with two winding points indicates a striking clock. This adds a pleasant sound to mark the passing of time.
The vast majority of box clocks were produced in Germany. German clock-makers were renowned for their precision and craftsmanship, making Germany a hub for clock manufacturing during that era.
Box clocks were widely used in homes, offices, schools, and other public spaces. Their minimalist design made them versatile and suitable for various interior styles.
Daniel Dakota box clock from the 1960s
Caution should be exercised against copies. In the 1960s, the Chinese reintroduced the box clock design and inundated the market with numerous 31-day clocks, sold under various names, with Daniel Dakota being the most widely recognized brand. However, these clocks did not match the quality and craftsmanship of the traditional German box clocks. During the same vintage period, certain Korean and Japanese clocks demonstrated acceptable quality standards but most are to be avoided.
Today, German box clocks are sought after by collectors and antique enthusiasts for their historical significance, craftsmanship, and unique design. They serve as reminders of a bygone era and continue to captivate people with their appeal.
If you are interested in acquiring a box clock, it’s essential to verify its authenticity and condition, as well as consult with experts or appraisers to ensure its value and authenticity.
In this post I will acquaint the reader with temperature compensation and what it means for maintaining the accuracy of a mechanical clock.
Almost all materials expand noticeably with heat and contract when cooled.
Temperature compensation is a critical factor to consider when it comes to the maintenance and repair of antique mechanical clocks. Clocks are precision instruments that rely on a delicate balance of mechanical components to keep accurate time. Any changes in temperature can cause the metal components of the clock to expand or contract, leading to inaccuracies in timekeeping.
Pendulum with dissimilar metal rods
To combat these fluctuations, many antique clocks were designed with temperature compensation mechanisms. These mechanisms are intended to counteract the effects of temperature changes on the clock’s accuracy. One common method of temperature compensation is the use of a bi-metallic strip, which is a strip of two different metals that are bonded together. As the temperature changes, the metals expand and contract at different rates, causing the strip to bend and adjust the balance of the clock.
Wood was a commonly used material for antique clock pendulum rods because it has a low coefficient of thermal expansion, meaning it is less likely to expand or contract with changes in temperature, which is crucial for maintaining the accuracy of timekeeping in clocks. Wood is relatively lightweight and easy to work with, making it a practical choice for clockmakers.
Seth Thomas Regulator #2 with wood pendulum rod
However, not all antique clocks were designed with temperature compensation mechanisms.
Clocks that have no temperature compensation may need seasonal adjustments
For those that lack these features, it’s important to keep the clock in a stable environment with minimal temperature fluctuations. However seasonal changes in heat and humidity may require periodic adjustments. Exposure to extreme temperatures or rapid changes in temperature can cause damage to the clock’s components and negatively impact its accuracy.
Gustav Becker Vienna Regulator with wood pendulum
Temperature compensation is a critical factor to consider when it comes to antique mechanical clocks. While some clocks were designed with built-in temperature compensation mechanisms, others may require more careful maintenance and storage to ensure accurate timekeeping over time.
Having said the above not every pendulum design that appears to provide temperature compensation actually serves that purpose. In certain instances, pendulum rod designs may be purely decorative (such as the Mauthe wall clock below) and lack temperature compensation functionality altogether.
Mauthe wall clock circa 1895
If your clock is experiencing inaccuracies in timekeeping, there are various adjustments that can be made. However, if you lack the necessary expertise, it is advisable to consult a professional clock repairer. They can thoroughly examine the clock’s mechanisms, identify any problems, and make the necessary adjustments to ensure precise and accurate timekeeping.
In this post, I describe an unusual issue when relocating my mini Vienna Regulator clock. But first some background information on Vienna Regulators.
The Vienna Regulator clock, also known as the Vienna wall clock, is a type of precision pendulum clock that originated in Vienna, Austria, in the late 18th century.
The development of the Vienna Regulator clock was influenced by several factors. One of the key factors was the rising demand for accurate timekeeping during the Industrial Revolution. Vienna, as a center of craftsmanship and technological innovation, played a vital role in meeting this demand.
They typically had a slender wooden case, which housed the pendulum and the clock mechanism. This design allowed for a longer pendulum, resulting in greater accuracy. The pendulum was often enclosed in a glass door or window, allowing the movement to be admired from the side panels while protecting it from dust.
The cases, made of various types of wood such as walnut, oak, or mahogany, were often finely crafted with decorative inlays, carvings, or veneers. The clocks featured a white enamel or porcelain dial, usually adorned with Roman numerals and ornate hands.
Vienna regulator movement
The movement of the Vienna Regulator clock was powered by weights suspended on cables or cords. The weights (up to three) were typically wound up once a week, providing the necessary power for the clock to run accurately.
During the 19th century, the Vienna Regulator clock underwent several design changes. The earlier models, known as “Vienna Regulators of the Biedermeier period,” were characterized by a simpler and more classical style. Later models, influenced by the emerging Victorian and Rococo revival styles, featured more elaborate ornamentation and decorative elements.
A well-preserved Vienna Regulator dial
The style and craftsmanship of Vienna Regulator clocks are often associated with exceptional quality and precision.
While the popularity of the Vienna Regulator clock declined in the early 20th century with the advent of more modern timekeeping devices, it remains highly valued by collectors and enthusiasts today.
The issue
During an unseasonably warm winter, we unexpectedly experienced a sudden drop in temperature, causing a significant plumbing issue that led to a major leak of the pipes in the ceiling of our family room on the first floor of our two-story home. The extent of the damage necessitated replacing the pipes and removing and replacing the gyprock ceiling. While the repairs were underway, we took the opportunity to revamp the room’s decor and make a few changes, including relocating some clocks to that area.
Some clocks can be temperamental and a clock that works fine in one location may not work at all in another. Such was the case of a miniature Vienna Regulator that once moved from an upstairs bedroom refused to run in the family room.
Suspecting a tangled cable issue the result of which would rob power to the movement, I took the movement out of its case and carefully rewound the cable onto its take-up reel. No change.
Could it be a wear issue? I proceeded to carefully remove the movement from its case and meticulously disassembled it, thoroughly inspecting for any signs of bent arbors, or damaged or worn teeth. However, to my surprise, I found no such issues. In fact, the movement was remarkably well-preserved, and the oil in the pivots appeared to be in excellent condition.
After carefully reinstalling the movement into its case and reattaching the weight and pendulum, I observed an interesting issue. I noticed that the bottom of the case protruded farther out than the top, indicating that the wall was not perfectly vertical. Suspecting a connection between this misalignment and the movement’s inability to run, I decided to investigate further.
Left Stabilizer
I adjusted the stabilizers, one on each side, stepping them back slightly, and to my surprise, I discovered the root cause. The escapement pallets, responsible for regulating the movement, were not engaging with the escape wheel correctly. This misalignment was likely the reason for the movement’s previous failure to function properly. It also made me realize that the wall where the clock was previously located was not vertically level.
While achieving horizontal leveling is undoubtedly crucial, it is important that vertical leveling can make a significant difference when it comes to the functionality of a clock. In fact, proper vertical alignment can be the determining factor between a clock that runs smoothly and one that fails to operate at all.
At the end of the day the exercise was worthwhile as it allowed me the clean the movement, reoil the pivots, and polish the brass pendulum and weight.
Every time I glance at one of the vintage clocks in my collection, I am struck by the exceptional level of craftsmanship and marvel at how a mechanical device crafted over a century ago can still maintain precise timekeeping.
Mechanical clocks are machines designed to measure, keep, and indicate time. Mechanical clocks rely on a combination of essential components to operate accurately, including a power source, gear train, escapement mechanism, regulating device, and display indicator. Each component plays a critical role in maintaining the clock’s accuracy and precision in timekeeping.
For simplicity, our discussion will be limited to mechanical clocks driven by a pendulum.
Let’s examine each function in detail.
Power:
The power source of a mechanical clock comes from winding the spring or lifting the weight.
Clock weights
Energy is transferred from the winder’s hand to the mainspring or weight, which stores the energy. When the clock is running, the energy is gradually released through the gears through the escapement, causing them to turn and power the clock’s movement. This movement, in turn, powers the clock’s hands and other features, such as the striking gears. Essentially, the mechanical energy from the winding mechanism is converted and transferred through various parts of the clock to keep time.
Mainspring for an American time and strike clock
Gears:
Gears, which are circular components with teeth, facilitate the transfer of energy through the gear train and turn each succeeding gear. In the case of the time-side gear train, it connects to the escape wheel, which rotates at a faster speed than the main wheel because of the interplay between the gears.
Reduction gears are commonly used in the striking or chiming mechanism of the clock, which sounds the hour or quarter-hour. The striking mechanism requires a slower and more prolonged release of energy, and reduction gears help to achieve this by slowing down the rate of rotation of the striking hammers.
Fusee
In some clock designs, the gear train may also incorporate a fusee, a cone-shaped pulley with a spiral groove, which compensates for the decreasing tension of the mainspring as it unwinds. The fusee acts as a mechanical amplifier, multiplying the force of the mainspring as it unwinds and compensating for the reduction in power over time. This allows the clock to maintain accurate timekeeping even as the mainspring unwinds.
Overall, the gear train and reduction gears are essential components of a clock’s mechanism, enabling the precise transfer and conversion of energy to power its movement and features.
Escapement:
The escapement allows the power to “escape” at a controlled rate. The tick-tock sound heard from a mechanical clock is caused by the verge catching and releasing the teeth of the escape wheel, transmitting an impulse to the pendulum to keep it swinging.
Escape wheel and pallets
Regulator:
The regulator controls the speed of the clock. Pendulums with longer rods oscillate more slowly, while those with shorter rods oscillate faster.
The rate of the escapement, which controls the release of energy from the gear train, can be adjusted by altering the effective length of the pendulum, which is the oscillating component of the clock’s regulating system. This can be done by adjusting the position of the pendulum weight or changing the length of the pendulum rod. By altering the length of the pendulum, the clock can be regulated and keep more accurate time.
Indicator:
The clock hands provide a visual reference of the current time, while the chimes or alarms provide an audible signal at specific intervals, such as the top of the hour or the quarter hour.
Synergy
Thus, the concept of synergy is essential in understanding how all the individual parts of a clock work together as a cohesive system to achieve the singular purpose of timekeeping. Each component has its specific function, but they all work together in harmony to create an accurate and reliable timekeeping tool.
The large hands of a gallery or dial clock
Mechanical clocks are a testament to the brilliance of their inventors, as many of these machines still run as well today as they did over a hundred years ago. The interaction of these five elements results in a synergy that allows these machines to do one thing: tell time.
During my article review this week, I stumbled upon my first-ever blog post from 2015 about my fortunate discovery of an Arthur Pequegnat clock in a nearby antique shop. It was an exciting experience for me, and I was thrilled to share it with my readers.
Arthur Pequegant Brandon II
This was my first Arthur Pequegnat clock whihc was the second edtiiion of the Brandon model. The second edition was made from 1917 to 1941. The first edition of the clock, which was produced until 1916, had similar dimensions but a more ornate frame around the dial bezel.
The Arthur Pequegnat Clock Company’s Brandon II model is a simple clock and was one of their most sought-after designs. It was primarily used in Canadian schoolrooms and office settings during the 1930s and 1940s.
The clock’s octagonal shape and short drop make it a recognizable design, and it is often referred to as a schoolhouse clock. Schoolhouse clocks were a popular type of clock used in schools during the late 19th and early 20th centuries, characterized by their simple yet sturdy design and often featuring a visible pendulum.
Schoolhouse clocks were usually time-only, as there would be other methods such as bells or alarms to mark key points in a typical school day. If placed in an office environment, a strike train would be too distracting for employees. Brandon models also came with calendars, a useful feature for both school or office.
Time-only Brandon with Calendarand “Regulator” decal
Both the case, made of quarter-sawn oak, and the brass movement were produced by the Arthur Pequegnat Clock Company in their small Kitchener factory until 1941. The company stopped production abruptly due to brass shortages during the Second World War.
The time-only movement is relatively simple with few gears and little that can go wrong. It was designed to be reliable, dependable, and able to withstand the abuse of a school or office environment.
Arthur Pequegnat Brandon time-only movement
I purchased this clock from an antique collector who had owned it for a number of years. He decided to sell it in his antique shop in Great Village, Nova Scotia, and I found the price to be reasonable. The case, face, and bezel are all in excellent condition. However, the clock had an annoying squeak that suggested something was wrong. After investigating, I discovered that the first wheel had considerable pivot hole wear.
Regrettably, due to my lack of expertise and tools at the time, I couldn’t repair the clock on my own. I had to take it to a horologist in Halifax, Nova Scotia, who performed the required repairs. The clock needed five bushings, a thorough cleaning of the mainspring, and oiling of the movement. Following the necessary repairs, the clock has been consistently dependable and has required only an inspection and re-oiling two years ago.
Since then, I have acquired eight more Arthur Pequegnat clocks and have since gained the skills to service each of them myself.
Vienna regulator weight-driven wall clocks are a type of mechanical clock that originated in Austria in the mid-19th century. These clocks are named after the city of Vienna, where they were first produced and gained popularity throughout Europe. They are known for their unique design, which features a long, slender case with a glass door that allows the pendulum and weights to be seen.
Miniature one-weight Vienna wall clock, circa 1880
Vienna regulators are often considered the pinnacle of European clockmaking artistry, and they continue to be cherished by collectors and clock enthusiasts around the world for their precision, elegance, and timeless beauty.
The Crown or topper
The simple lines of the Vienna Regulator are exemplified in this unmarked mini version found on a local online for-sale site some 5 years ago. Simplicity is exemplified in its job of performing one function – telling the time.
Weight-driven clocks with comparatively large pendulum bobs give a very visual display of the clock’s activity. In my view, it is the weight-driven ones that have greater appeal than spring-driven clocks.
Time only movement
Nothing has been done to the clock save disassembling and cleaning the movement and polishing the pendulum and brass-encased weight.
Another is a two-weight Vienna Regulator by Gustav Becker which required extensive repair and restoration.
Gustav Becker 2-weight Vienna Regulator
Vienna regulator weight-driven clocks are a testament to the precision and artistry of clock-making, showcasing the intricate mechanisms and stunning designs that make them highly sought after by collectors and enthusiasts alike.
What is truly fascinating is the accuracy of a clock that is almost 150 years old.
Honestly, an entire book could be devoted to the topic of dating clocks. Some time ago, I published an article titled “How to Date an Antique or Vintage Clock – Part I,” in which I used specific examples from my own collection.
I’d like to explore this topic further, and this post will discuss additional methods for dating an antique or vintage mechanical clock. While there is no one definitive method for dating an antique or vintage clock, there are often clear clues in some cases and more subtle hints in others that can help pinpoint when a clock was made.
Occasionally, the exact month and year are displayed somewhere on the case, and in other instances, the clock by way of serial numbers, date stamps on the movement, style of hands, spandrels, dial design, case design, and so on, establishes the date to within a certain period.
After 1896 foreign clocks (Europe, England) were mandated to have the country of origin on the case, usually on the dial. Any clock made after that date will have the country of origin.
Duration of manufacture
A bit of research into the history of a clockmaker can help you narrow down the timeframe for dating your clock. For instance, the E.N. Welch Clock Company, an American manufacturer, produced clocks until 1903, when it was acquired by the Sessions Clock Company, which continued making clocks until 1970. The E.N. Welch Clock Company made clocks for a 50-year period until its acquisition by Sessions in 1903.
By 1903 German-based clock manufacturer Junghans was the largest clock maker in the world and continued in its quest to bring more companies into the fold. Gustav Becker, founded in the 1860s, and Hamburg American Clock Company, founded in 1883 were absorbed by Junghans in the late 1920s. Although those companies were folded into Junghans in 1926 the Gustav Becker name lived on for another 9 years.
Gustav Becker regulator C.1907, Braunau factory
Clocks with Steel vs Brass platesvs Woodworks movements
Smaller shelf clocks with 1-day (30-hour) wooden movements were produced in fairly large quantities from around 1810 to 1845, after which most clockmakers changed over to brass movements. Wood dials were also popular during this period.
Daniel Pratt woodworks movement with dial removedC.1832-38
By 1860 iron weights were being replaced by springs as the power source, and smaller clocks, many of them 8-day, were becoming increasingly popular. Early American spring-driven clocks used brass springs (late 1830s) until steel became cost-effective.
This information is important for dating a clock because it highlights key transitions in clockmaking technology and design, which can help pinpoint the era in which a clock was made. For example, the use of wooden movements and wood dials can indicate a clock was produced between 1810 and 1845. The shift from iron weights to springs by 1860 helps us understand why spring-driven clocks became popular, which is crucial for narrowing the period of manufacture. Additionally, the switch from brass springs to steel in the early 1840s can provide a more precise date range for early spring-driven clocks.
Understanding these technological changes allows you to make more informed judgments about a clock’s age based on its features.
Brass mainsprings from a Manross steeple clock C.1837
During periods when brass was in short supply such as the World Wars (WWI and WWII), makers often made steel plate movements with brass bushing inserts. However, some companies such as Arthur Pequegnat used either steel plates or brass-plated steel plates throughout their operating years (1902 to 1941).
Steel plates on a Pequegnat time and strike clock
Other clock companies switched to steel as a cost-cutting measure when brass prices were high, not necessarily during wartime.
Screws and nails, chime rods, coiled gongs
In older clocks, nails, and screws were made of iron and hand-forged, with screw heads being slotted. Hand-forged nails can be found in clock cases dating from the earliest examples up to the mid-19th century, after which machined screws and nails started to replace them.
An ogee clock, like this example made by George H. Clark in 1865, was constructed with hand-forged nails.
George H Clark 30-hour Ogee shelf clock
Robertson and Phillips head screws were introduced in the first part of the twentieth century. Since the Robertson head was invented in 1906 and Phillips screw heads only began to be widely used in the 1930s screws of these types found in older antique clocks are later additions.
Since these screw types were introduced in the early 20th century, their use in a clock that dates from an earlier period suggests that the screws were likely replaced or added during a later restoration or repair. Recognizing these screws helps refine the clock’s dating and can provide insight into its history and any modifications it may have undergone.
The first rod gong, a single striking rod, dates back to patent designation DRGM 108469, granted to Johann Obergfell on December 23rd, 1899. The introduction of the rod gong, as opposed to earlier bell or strike systems, represents a key development in the evolution of mechanical clocks, especially in terms of sound quality and the technology used.
Understanding when this innovation occurred can help date a clock more accurately, particularly those with rod gongs, as it indicates they were likely made after 1899. Rod gongs are typically made from a copper or nickel alloy and are press-fitted into a block.
Thick coiled gong
There are two types of coils: the thick coils, which spiral only a few times and produce a deep, rich tone, and the thinner coils, which spiral many times and often have a higher-pitched, tin-like sound. Thick coils were used well before the mid-1800s. These coils are typically mounted onto a fitting, which is then attached to an iron block. Smaller, thicker coils became more common towards the end of the 19th century.
On the American front, thin wire coils were very common. Some examples had the coil mounted to a dome-shaped base which was said to improve the tone considerately.
Commemorative plaques
Commemorative plaques which display dates are often a good indicator of the age of a clock. However, the clock may have been on a seller’s shelf for years before the date on the plaque. This nevertheless places the clock within a certain range of dates. This photo shows a plaque on a HAC (Hamburg American Clock Co.) time and strike shelf clock.
HAC shelf clock with the date 1926 on a plaque
Type of escapement
Recoil (anchor), half deadbeat, Graham deadbeat, pinwheel, Brocot types are found in older antique clocks while, hairspring, floating balance, lever type escapements are found in newer vintage (less than 100 years old) clocks.
For example, floating balance movementsbegan appearing in mechanical clocks in the early 1950s. The floating balance will tolerate being out of level, unlike pendulum clocks which must be on a level surface, an attractive marketing feature.
This is important because the type of escapement mechanism used in a clock can provide key insights into its age and technological development. Older clocks with recoil (anchor), half deadbeat, Graham deadbeat, pinwheel, or Brocot escapements reflect the horological practices of earlier periods, while newer clocks featuring hairspring, floating balance, or lever type escapements indicate a more modern design, typically found in clocks less than 70 years old.
For example, the introduction of the floating balance in the 1950s was a signifcant advance because it allows for clocks that are less sensitive to being off-level, a feature that made them more convenient for consumers. Recognizing these mechanisms helps in accurately dating a clock and understanding the technological shifts over time.
floating balance escapementC. 1950
Style of case
The style of the case, such as ogee, box clock, steeple, cottage, or gingerbread, can help date the clock to a specific period.
The style of a clock case can offer valuable clues about its age, as different case styles were popular during specific periods in history. Here’s a breakdown of some common clock case styles and their associated timeframes:
Ogee Clocks: These clocks, named for the distinctive curved, “S”-shaped design of their cases, were popular from the early 19th century, especially between 1825 and 1850 but continued to be made into the 1880s. They typically have a simple, symmetrical shape, often with a painted or paper dial, and were mostly made with wooden movements in the early years.
Box Clocks: This style features a simple, rectangular or square case, often with a hinged door or glass front. Box clocks were common in the early to mid-19th century (1920s to 1940s), with their plain, functional design making them relatively inexpensive to produce.
Steeple Clocks: Steeple clocks are characterized by their pointed, “steeple” shape at the top of the case. This design became particularly popular from the 1840s through the 1870s. Steeple clocks were typically more decorative and were often used in homes and churches, with some having more ornate carvings or decorative elements.
Cottage Clocks: Cottage clocks, with their simple and rustic designs, emerged in the mid-19th century, around the 1840s and 1850s. Often smaller in size, these inexpensive clocks were popular in rural homes. They are sometimes characterized by a more casual, handcrafted appearance, with wooden cases and floral or geometric motifs.
Gingerbread Clocks: This style, which features intricate carvings and decorative elements like scalloped edges, ornate moldings, and small, detailed pieces, gained popularity in the mid- to late-19th century (around 1860 to 1880). Gingerbread clocks are often associated with the Victorian era and were typically mass-produced.
The case style is a strong indicator of the clock’s approximate age because clockmakers and manufacturers often adapted their designs to reflect contemporary tastes. By identifying the specific features of a clock’s case—such as the materials used, shape, and any distinctive decorative elements—you can narrow down the period in which it was made, which can then aid in dating the clock more precisely.
E Ingraham Huron C.1878
Knowing the period when a case was made provides a reliable indicator of the clock’s age. Although there are earlier patent dates stamped on the movement of this E. Ingraham Huron time and strike 8-day shelf clock, this style of case was made for only 2 years, 1878 to 1880.
Date stamps on movements or cases& searchable databases
Some makers stamp date their movements or display the date elsewhere on the clock case. The Gilbert Clock Company often date-stamped their movements. Sessions put dates on the door labels.
Some makers such as Junghans stamp a date code on their movements. For example, B19 stamped on the back plate of a Junghans movement refers to a movement made in the latter half of 1919.
Serial numbers stamped on movements can be compared to a database to determine the exact year the clock was made. The Ridgeway clock company used 4-digit codes. For example, serial number 4981 refers to a Ridgeway clock made in 1981.
Gustav Becker clocks were made in both Silesia and Braunau factories, both of which produced clocks but each had a unique serial number convention. The serial number on a Gustav Becker clock will give the exact year of production assuming you know where it was made, Silesia or Braunau.
An online databases such as ClockHistory.com provides invaluable information on companies and models made by them, the years the clock company was in business, and how long the company was in operation.
Searchable databases like Mikrolisk, the horological trademark index help date a clock by comparing a trademark. Some companies revise or restyle their trademarks over the years allowing one to date a clock within a certain period.
At Antique-horology.org keywords or text can be used to search trademarks and identify years they were used.
Scottish tall case clock C.1848
The date 1848 is attributed to the clock above. I arrived at this date because it was made by William McLachlan of Newton Stewart, Scotland. According to an English clock database, Mr. McLachlan was a clock assembler and ran a clock-making business in Newton Stewart until his death in 1848. While the clock could have been assembled as early as 10 years prior, 1848 serves as a conservative estimate.
Other miscellaneous indicators
Plywood began to be used in clock cases starting in 1905. One of the clocks in my collection, a Junghans bracket clock, made around 1913, features a plywood back access door.
Seth Thomas made clocks in marble cases for a short time, from 1887 to about 1895. They also made clocks in iron cases finished in black enamel, from 1892 to about 1895.
Adamantine clocks were most popular through to 1915. Seth Thomas is best known for their “Adamantine” black mantel clocks, which were made starting in 1882. Adamantine is a celluloid veneer, glued to the wood case. Adamantine veneer was made in black and white, and in coloured patterns such as wood grain, onyx, and marble.
Seth ThomasAdamantine clock circa 1911
Final thoughts
My goal for this two-part article was to provide a broad, generalized overview. Each of the sub-topics mentioned above could be explored in much greater detail, and I hope this serves as a useful reference for some of you. I welcome any corrections to the dates, and if there’s anything I’ve missed or other information that should have been included, please feel free to leave a comment.
As I’ve outlined, there are many ways to date a clock—some methods are quite obvious, while others are more subtle and require a bit of research to pinpoint.
For some collectors and clock fans, dating a clock is crucial, as it adds historical context and value to the piece. For others, however, it may not be as important, especially if the clock serves primarily as a decorative item rather than a functional or collectible piece. In such cases, the aesthetic appeal might take precedence over its exact age.
A mechanical clock is more than just a sum of its parts; it is a remarkable machine designed to measure, verify, keep, and indicate time. These devices allow us to measure intervals shorter than the natural units of the day, the lunar month, or the year.
Pequegnat double spring time-only movement
How many machines can you name that run almost as well as they did the day they were built over 100 years ago and still operate exactly as designed? Not many! This enduring functionality is a testament to the ingenuity and vision of their inventors. Mechanical clocks are truly a marvel of engineering!
Clock mainsprings, one for the time side and one for the strike side
A True Story
Let me begin with a sad but true story. A few years ago, a friend of my son was visiting our home. He showed an interest in my clock collection, and I was more than happy to answer his questions.
At one point, he asked me how a clock worked. I picked up an American time-and-strike spring-driven movement and explained how the spring provides power, how the wheels transmit energy, and how that energy is released to keep time. He took the movement in his hands, examined it closely, and then, with a puzzled expression, asked, “Where do the batteries go?”
How A Clock Works
But how does this centuries-old invention actually work? Let’s take a closer look at the fascinating inner workings of mechanical clocks and discover how they keep time with such precision and elegance.
Let’s keep it simple by focusing on the Five elements that are required. They are Power, Gears, Escapement, Regulator, and Indicator. Let’s discuss each one.
Power
Double spring time-only movement with top plate removedrevealing the gears
The power is in your hands. The energy from you is transferred to the mechanical clock when winding it. As you insert the key into a winding point, energy is converted from your hand to the spring or weight.
The spring when fully wound or the weight pulled to its highest point provides the motive power or releases energy through the gears and allows the clock to run for a fixed period of time. Without a source of power, a mechanical clock will not run and a mechanical clock will stop when power is spent.
Gears or Wheels
Gears are also called wheels. The wheels have teeth. Each gear or wheel meshes or interacts with the next gear by way of pinions.
Energy is transferred to each wheel through what is called the train and in the process, the subsequent wheels turn faster. The time side gear train, for example, through a series of wheels leads to a wheel or gear called the escape wheel which turns much faster than the main wheel with the spring or weight. But the power that is released through the train must be controlled.
Escapement or Controlled Release Mechanism
The escapement is the last wheel in the time train. It is designed to release the power from the mainspring or weight in a controlled manner.
Escape wheel and verge
This is the tick and tock you hear when you are close to a mechanical clock. It is the sound of the verge catching and releasing the teeth of the escape wheel. The tick and tocks transmit an impulse to the pendulum to keep it swinging.
Similarly, the mainspring releases the energy through the gears or wheels on the strike side of a clock by means of a series of levers and pins.
The Regulator
Bracket clock showing pendulum leader and bob
A regulator controls the speed of the clock. An example of a regulator is a pendulum. Generally speaking, a pendulum with a longer rod will oscillate more slowly than one with a shorter rod.
Regulating or adjusting the length of a pendulum will speed or slow down a clock. On the same clock, lengthening the pendulum slows the clock, and shortening the pendulum makes the clock go faster.
Clocks without a pendulum have lever escapements, floating balances, and balance wheels that rely on a coiled spring and are regulated by means of an adjustment dial or lever on the escapement arbour.
Clock face showing the hour and minute hand
Indicator
The indicator is the hands on the dial face. Regardless of the size of the dial, the style of the hands, how numbers are displayed, they all do one thing, tell the time.
The indicator also points to the sound a clock makes at a certain part in the hour whether it is quarterly, the half-hour, or the hour on a bell(s) or chime rod(s).
Synergy
The five elements come together to create synergy—a harmonious interaction of parts that produces a result greater than the sum of their individual contributions. This controlled harnessing of energy is ingeniously designed to make the machine perform one task: tell the time.
I think my son’s friend still wondered where the batteries go.
This is Part III of a three (3) part series. In Part I I discuss disassembly and servicing the mainsprings. In Part II, the movement and in this, Part III we will look at restoring the brass case.
This is Part II of a three (3) part series. In Part I, I discuss disassembly and servicing the mainsprings. In this, Part II, the movement and in Part III we will look at restoring the brass case.
My wife found this 1910 Ansonia Crystal Regulator in the late summer 2018 while antique shopping. What a great choice! We were in a hurry and despite a price reduction we should have asked the proprietor to show us that it worked. We returned home and to our dismay, it was not running.
In Part I of this two part series I discuss disassembly and the big question; how to service the mainsprings.
Front of movement showing visible escapement
The movement
There are 4 screws that release the plates. The 3 pin gathering pallet and hour gear must be removed to facilitate servicing. It is possible to re-assemble the movement without removing those two parts but it is very frustrating. To remove them assemble the plates. Using two small blades (small screwdrivers) positioned 180 degrees apart from one another will work. As these movements are visible, any scratches will show, so, placing masking tape on the plate will prevent scratches. Wedge both screwdrivers and the parts should pop off. The gathering pallet flew across the room (not ideal) but it worked.
Twisting the top regulator pivot bracket on the front plate upwards allows the pallets and crutch to come out from between the movement plates.
Clean parts in the usual way but do not put the pallet assembly in the ultrasonic if the pallets are jeweled. The ultrasonic machine will loosen the pallets.
Rack and snail assembly on the back plate
The movement required 5 bushings and all on the front plate; S2, S3, T2, T3, and T4. Unusual but understandable given the placement of the gears.
Getting it all back together
Putting the plates together with gears in place is fairly straightforward. It takes a gentle twisting to get the pallet assembly in position however, there is no need to force anything.
Most of the strike assembly is on the outside but it is important to set up the warning correctly. There are two wheels with stop pins.
Thanks to reader Bob G. for explaining the following. The wheel with the stop pin closest to the outside of the plate is the stop wheel. That is held back by the tab coming through the plate from the back of the movement. The next wheel that has a stop pin is the warning. As the hour arbor lifts the lever to begin the strike sequence, the warning pin holds everything back until the correct moment. That second stop pin should be at about the four o’clock position when looking at the movement from the front.
If the stop pins are in the correct position, you must adjust the position of the pins on the gathering pallet. If you hold the wheel next to the fly, you can grip the pallet with a needle nose pliers and turn it until the pins clear the rack. Otherwise, the pins on the gathering pallet will lock the rack and the clock will only strike once on the hour and half hour.
All adjustments have been made and the movement has been fully assembled and now onto the movement test stand.
This is Part I of a three (3) part series. In Part I I discuss disassembly and servicing the mainsprings. In Part II, the movement and in Part II restoring the brass case.
My wife found this 1910 Ansonia Crystal Regulator in the late summer 2018 while antique shopping. In the 1905 Ansonia Crystal Regulator catalogue it is listed as the Prism at a price of $29.00 which would have been a hefty sum at that time. (Flash is required to open the catalogue)
What a great choice! We were in a hurry and should have asked the proprietor to show us that it worked. We returned home and to our dismay, it was not running. As I said in an article published in Dec 2018:
A gentle push of the pendulum produces a few ticks and then it stops. I am not familiar with Brocot escapements and before I do anything I will research the movement before I disassemble it and give it a thorough cleaning.
Brocot visible escapement; in this photo, the brass is very tarnished
Just days old but I thought I would polish the brass
This is a truly beautiful clock with a visible escapement. What I have learned is this; don’t mess with a Brocot escapement. The stone pallets, which are made of garnet are very delicate and breaking one or both is a huge issue. The pallets are held together by melted shellac and cleaning them in an ultrasonic will loosen them as they are position sensitive.
It is now April (2019) and I have put this project off long enough. So let’s begin.
This not a particularly easy clock to work on. The pivots are smaller than a typical American time and strike movement which means closer tolerances. The strike side is rack and snail, that is, there are no helper springs and only one combination lever between the plates. Most strike parts are located outside the plates and the final assembly for the Brocot escapement also occurs outside the plates. There are two wheels with stop pins for the strike side. Setting them up can be a challenge.
Dissembling the case
To disassemble the case I wrapped two strips of painters tape on all four sides. Doing so prevents the glass from falling out. Beveled glass panels are difficult to replace and exercising care when working with the case will prevent accidents. Each glass panel can be as much as $75 by the time shipping is included and turnaround time can be as much as 2 months.
The first to come out is the gong assembly. One large nut secures the gong to the case and is accessible from underneath the base.
I chose to disassemble the entire case though it is possible to remove the movement without doing do. There are three screws at the 1-2, 10-11 and 6 o’clock positions though a long skinning screwdriver is required to get at them.
There are 4 large screws on the bottom and 4 on top. Unscrew the bottom 4 screws first. Once the base is off you will quickly realize the importance of the painter’s tape. To access the top screws there is one small screw underneath the top plate that must be released to access the 4 top corner screws. Patience is key if you work slowly the chance of error is reduced. Put the brass pieces and the glass panels in a safe place while working on the movement.
Mainsprings
The mainsprings are in barrels. The barrels are secured to the movement plates with 4 screws. The great wheel and the arbour are one piece. With a twist, the arbour can be removed from the mainspring.
There are three ways to service the mainsprings.
1) Find a temporary winding arbor and use it to unwind the mainspring on a spring winder.
2) Hold the barrel in one hand and pull the spring out with the other being careful not to kink or bend the spring. Once the spring is released from the barrel, unhook it and you are free to clean the spring. To put it back together, use a thick leather glove to hold the barrel, hook the hole end, and carefully rewind the spring back into the barrel.
3) Partially disassemble the great wheel and use the arbour without the gear in place. Special tools are required to separate the arbour from the wheel.
Olie Baker spring winder
Front of movement showing visible escapement
Back of movement showing rack and snail, hammer and rate adjuster
In Part II I discuss servicing the movement and in Part III, restoring the brass case.
Although there are two dozen clock books in my collection I am always on the look out for more. Some of my books profile various types and styles of clocks, some explore the history of horology while others are concerned with clock repair and case restoration.
Part of every vacation or daily outing in my province of Nova Scotia or elsewhere in Canada involves scouring the used books stores for clock books. Sometimes I am lucky and manage to locate some good ones but quite often I will leave used book stores disappointed.
The table of contents describes what he covers in his book.
Contents of the book
Specialized procedures
Although the book is no longer in print it provides excellent examples of clock repair procedures by describing step-by-step instruction for overhauling and repairing many movements plus the repair and restoration of dials, and cases of antique pendulum clocks. Commonly found clocks that you are likely to inherit or find on online auction sites, flea markets and antique stores are covered.
John Plewes covers clocks from Britain, Canada, the US, France and Germany. There are plenty of diagrams and photos in the book to assist the amateur or expert repair person .
For example, Chapter 4 covers the Pequegnat Regulator #1 8-day movement.
“The finest clock made in America”; Pequegnat advertisement. This clock hangs in the Canadian Clock Museum
The clock is markedly similar to the Seth Thomas Regulator #2 shown below.
Seth Thomas Regulator #2
Plewes makes several interesting points regarding the design of this clock. He discusses the difficulty in finding a replacement weight and often the lighter Seth Thomas weight is substituted which leads to the clock stopping after a while. Plewes is surprisingly critical of the #1 at one point stating that the hands are too heavy since they influence the force applied to the train. The pendulum arc changes when the minute hand indicates 20 minutes after, as against that at 50 minutes. The solution, he feels, is to counterweight the hands or install lighter hands. Plewes opines that the whole point of a regulator is to maintain the constant arc and Pequegnat seemed to have missed that point when designing the clock.
Plewes covers a lot of ground in his book. Some of the advice is certainly beyond the skill level of an amateur clock repair person but if you are interested in growing within the world of clock repair and case restoration it will provide an invaluable resource.
Also included are safety tips, shop techniques, and a glossary of terms.
The book was last published over 30 years ago but If you can find it, and are interested in clock repair from a Canadian perspective it is well worth the cost.
Antique and Vintage Mechanical Clocks 
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