How do you date an Atmos clock?

There is a simple formula for dating Atmos clocks made in 1954 or later. Take the serial number and divide it by 20,000. Add that to 1954, and you should be within a year or two. Your clock is right around 1954, maybe 1955.

Are Atmos clocks accurate?

All the components of the Atmos® clock are amazingly accurate and dependable; hence it has virtually wear-free operation. Nevertheless, as a result of pollution in the surrounding atmosphere, it is recommended that you should have your clock checked and serviced regularly.

What model is my Atmos clock?

The Serial Number of an Atmos Clock is usually located on the top of the Movement, by the Speed Adjustment Lever. On some very older models, the serial number may actually be on the front of the Movement -near the hands and on Antique Reutter Clocks the serial number is often on the Back Drum portion.

What makes an Atmos clock run?

Instead, the Atmos clock gets its power from minute changes in atmospheric temperature (hence the name). In that temp range, the Atmos converts thermal variations into mechanical energy efficiently enough that left to its own devices, the clock will run essentially indefinitely.