Sessions Mission style wall clock – past shoddy repairs make servicing a challenge

Between 1903 and 1933 the Sessions Clock Company of America produced 52 models of mechanical clocks ranging from simple mantel clocks and shelf clocks to wall or “regulator” clocks all designed for the home or small businesses.

Found in many homes across America Sessions clocks were regarded as relatively inexpensive, simple in design, and decently constructed aside from one noted design flaw, the clicks. After a hundred years many Sessions clocks are still running.

Mission style clock by Sessions

This is the only mission-style clock in my collection. I was not particularly looking for this one but a $10 find in a thrift shop is hard to pass up. Though this clock is non-running Sessions movements are simple enough to work on.

As there is no maker’s label I can’t tell you the model name or number of this wall clock but I assume that it was made in the early part of the 20th century.

The movement

The case is in very good condition and there is nothing missing save the winding key which can be easily sourced. The minute hand broke while I was setting the time, probably as a result of being bent so many times. That can be repaired.

Sessions movement with front plate off

The movement is a conventional Sessions design with a between-the-plates escapement setup as opposed to earlier Sessions movements that had inboard escapements.

I noticed many “X” marks around bushings but I did not see punch marks or replacement bushings. Was it meant to have had the bushings replaced?

Servicing the mainsprings

The cam wheel pegs for the striking lever have both been soldered and although it is not a very neat job the repair seems strong enough.

There is a hole adjacent to the escape wheel arbor which might have been made through manufacture but it is oddly close to the escape wheel bushing hole.

One more issue. The actuator arm for the hour strike had been bent so many times that it snapped off when I tried to test the clock before disassembly. This can also be repaired.

In short, this is a clock that has been worked on in the past and I would think, not by a professional. Sometimes home-cooked repairs are strong and functional and other times they leave a lot to be desired.

All is not lost and I think this movement can be saved.

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