Jaeger-LeCoultre 'Atmos II' self-winding clock, c 1939.

Richardson, Claire

 
Jaeger-LeCoultre 'Atmos II' self-winding clock, c 1939.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Description

The 'Atmos' is a spring-driven table clock which is kept wound entirely by changes in atmospheric temperature and presure. A set of gas-filled metal bellows, which are connected through a chain and pulley to the mainspring, move in and out with such changes. A change in temperature of just plus or minus one degree will keep the clock wound for 48 hours. It is regulated by a torsional (twisting) pendulum, which beats twice per minute. Over half a million Atmos clocks have been manufactured since coming on to the market in 1936. Manufactured by De Trevars Ltd of London, England. View of face.

Image Details

Artist
 
Image Ref.
 
10325385

© Science Museum / Science & Society Picture Library

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