Jaeger LeCoultre - Atmos Cal. 540

Dimensions: H x W x D: 23 x 20 x 15 cm

Description:
Atmos calibre 540 in a 24-carat gold-plated case.
White square ring dial with Arabic numerals 3, 6, 9, 12 and eight applied indexes for the remaining hours.
Below the 6 we see the imprint "SWISS MADE". There is also a manufacturer's engraving on the front movement plate. Another imprint can be found at the bottom right of the front plate.

Ref. 220.117.1
Serial number: 645388
Year of manufacture: 1989.

"As if it were floating in mid-air, the ring-shaped balance wheel turns with infinite slowness without ever stopping. The Atmos Classique table clock with gold-plated case is the perfect union of technology and aesthetics." Jaeger LeCoultre Collection Brochure

Condition:
Freshly overhauled, the movement is in very good condition.

Further information:
Even though Leonardo da Vinci was able to prove that the creation of a perpetual motion machine was physically impossible, it was nevertheless attempted again and again. This was also the case with the Neuchâtel engineer Jean Leon Reuter, who in 1928 invented the technology for a clock whose energy source was drawn from the ambient air, from the atmosphere, so to speak.
Since there were always problems with the clocks, the movements were manufactured by the company Le Coultre et Cie in Switzerland from 1933 onwards, and in 1935 the production rights for the Atmos clock were transferred to Ets. Ed. Jaeger.
The technical principle of the movements built by Jaeger LeCoultre from 1936 onwards is simply impressive: a mixture of a liquid and the gas ethyl chloride is contained in a hermetically sealed capsule. As the temperature rises, the mixture expands, and as the temperature falls, it contracts, causing a bellows in the pressure box located on the back of the watch to move like an accordion. This movement continuously winds the movement. In the range between 15 and 30°C, a change in temperature of just one degree Celsius is enough to provide the energy for about two days of operation.

Price: 2450,- €