Sessions Store Regulator Clock with Simple Calendar

I repaired this oak-cased store regulator wall clock for a customer. It was made by Sessions Clock Company, Forestville, Connecticut and is 8-day time-only (no strike or chime). It has simple calendar work – just a single red hand that points to the day of the month. The red hand slowly moves forward one click each evening after midnight.

On months with less than 30 days, the calendar hand needs to be moved manually ahead one click; this should be done from around 6 a.m. to 4 p.m. the first day of the new month.

This clock was made around 1902 to 1920.

The outside of the dial was not originally painted red, it was bare steel or plated steel.

See more pictures.

Repair job 8958. I replaced the missing calendar mechanism and heat treated the hour and minute hands to make them turn dark blue like original (the finish had been scuffed off the hands in the past). I overhauled the movement: disassemble, clean, polish pivots, install 7 bushings, smooth the click (part of the ratchet or winding mechanism), smoothed the pallets and closed them to reduce the drop onto the exit pallet. After all the repair work I cleaned the movement parts again, assembled them and lubricated the pivots, pallets, and the pendulum rod where it passes through the crutch.

The original mainspring is 3/4 by 0.018 inches. It had caused very little wear to the mainwheel teeth, so I left it alone. Note: a new mainspring of the same thickness would be too strong for the clock and would cause the mainwheel teeth to wear. Thus, a thinner mainspring such as 0.014 or 0.015 inch thick would be used.

If you have a clock that needs repair, please see my website, billsclockworks.com.


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