What is a 31 day clock?
A 31-day clock operates by gears and springs located inside the clock. This is how most clocks operated before the lifesaving invention of batteries. During the month, the clock winds down, and on the 31st day, it stops completely. On this day, you must rewind the clock to get it working again.
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How can I slow down my 31 day clock?
The clock can be made to go faster or slower by means of the nut at the bottom of the pendulum. Turning the front of the nut to the right speeds up the clock, and turning it to the left slows it down (in other words move the nut up to speed up, or down to slow down).

Is there a market for old clocks?
Antique clocks are highly sought after in the antique market, making them valuable consignment items. If you’re interested in consigning your wooden clock at auction, selling antique mantel clocks or buying or selling grandfather clocks, Fontaine’s Auction Gallery can help no matter the type of clock.
How often do you wind a pendulum clock?
Unlike modern electric clocks, pendulum clocks keep time using a series of spring-loaded gears that require regular winding, usually once a week. A special clock key or clock-winding crank turns the mechanism.
Why does the pendulum on my clock keep stopping?

The reason a clock pendulum often stops swinging, after being moved, is because the clock case now leans at a slightly different angle then it did at its former location. Don’t worry about making your clock absolutely level with the floor and don’t use a level.
Do clocks go up in value?
Mass-produced or poor quality clocks can either go up or down in value as they are affected by fashion and trend. It is invariably always the case that fine, high quality, rare, early and clocks made by sought after or famous makers are the best investment.
How do you identify a clock movement?
Identifying Movements To determine the movement manufacturer, take the back off the clock to get to the movement inside. Locate numbers or symbols on the back of the movement. Not all clocks have numbers that are easy to see and thus require some hunting with a flashlight.