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Object Record

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Object Name Clock, Shelf
Catalog Number 77.37.4
Collection Timepiece
Other Name Atmos Clock
Date 1956
Description c.1956- LeCoultre Atmosphere Clock
This clock is mainly wound by changes of temperature, about 10% of the power is obtained by barometric change. The large drum contains an aneroid-like box filled with ethyl-chloride which expands and contracts with temperature, thereby winding the movement. A variation of only 2 degrees F is equivalent to 48 hours running. Fully wound the clock will run for 100 days. Clock is brass with glass. Brass case with Arabic numerals on dial and 15 jewels. The bezel is gold-plated. Spring visible in back component.
Serial # 56241
Maker LeCoultre
Material brass, glass, ethyl-chloride
Place of Origin Le Sentier, Switzerland
Serial Number(s) 56241