Atmos clock

Atmos clock

New postby Andy Krietzer » Mon Jun 15, 2009 1:44 am

Made by Jaeger-LeCoultre of Switzerland since approximately 1937.
Originally designed as a clock which automatically wound itself with barometric pressure changes, more accurate description will describe it as winding itself by temperature change. A temperature change of only a few degrees will keep it wound for several days. The clock itself has a 15 jewel movement, in a brass and glass case, usually all gold plated, which is self-winding and generally runs for many years without any upkeep whatsoever. The only changes may be time setting and slight adjustments to speed. Many case styles were available, the most common style is a brass (gold plated) and glass case. Still available new from Jaeger LeCoultre.

Andy
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Re: Atmos clock

New postby Glyn Meredith » Mon Jun 15, 2009 2:10 am

There is an excellent website about Atmos clocks - history, gallery, repairs, and more.

Atmos.JPG
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Re: Atmos clock

New postby brownsrplm » Mon Jan 20, 2014 11:49 pm

An add on here: in order for this clock to measure barometric pressure it uses an Argon gas bellows in it that is extremely sensitive to temperature changes.
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