Antique and Vintage Mechanical Clocks

What to do with an inactive clock?

Having a clock serviced and letting it sit without running for long periods can have varying effects, influenced by factors like the environment it’s in. If the clock is stored in a clean, dust-free, and controlled humidity setting, it may require less frequent running. Considerations such as the presence of pets, whose hair can find its way into delicate clock mechanisms, dusty homes, and humid conditions play a role.

Consider the indoor environment when storing clocks. High concentrations of indoor pollutants, such as particulates, tobacco smoke, and animal dander, can affect clock mechanisms. Proper sealing of access doors, replacing broken dial glass, and keeping clocks away from dusty or humid areas can help preserve their condition.

Storing your clock in an unheated attic, for instance, with the anticipation of having it operational at a later date, is a recipe for potential disaster.

Applying a generous amount of lubricant spray on a clock’s movement during extended storage is not advisable. This practice can lead to serious issues because excess lubricant will attract dust and debris, forming a sticky residue over the entire movement. Instead, a moderate and targeted application of a lubricant intended for clock pivot holes is recommended to ensure proper functioning without negative side effects.

A general recommendation is to check and service your clock(s) on a 3-4-year schedule. During these checks, assess the condition of the clock, add oil where necessary, and note any signs of wear. This approach can keep your clock or your clock collection in good shape with minimal intervention. If pets are present, more frequent inspections may be necessary.

For a clock that’s been inactive for a year or more, refreshing the oil before running it is advisable, especially if there’s little or no evidence of oil in the pivot holes. Quality clock oil, designed for this purpose such as Keystone pivot oil, typically doesn’t break down over a year. If a clock is well-oiled before storage but not over-oiled, it should remain in good condition during this period.

It should be noted that to ensure proper oiling, the movement must be taken out of its case. Of course, the hands must be removed as the first step. However, for the majority of clocks, particularly those crafted in the USA, releasing the movement from its case typically involves taking out four slotted screws.

Some collectors choose to run clocks intermittently, perhaps once every two or three months, to keep the wheels moving without excessive wear. This is particularly true for specialized clocks that may be challenging to service, to extend the time between required maintenance.

Ultimately, proactive care and regular checks can prevent clocks from deteriorating to a point where repairs become costly. Taking these measures ensures that your cherished vintage or antique clock will provide years of reliable service.