Jaeger LeCoultre - Atmos watch in original box

Dimensions: H x W x D: 22 x 17 x 11 cm

Description:
Atmos VII in a gold-plated brass case with black lacquered sides and matt gold brushed dial.
Instead of numbers, we see two double lines for 3, 6, 9 and 12 and single lines for the remaining hours. There is a raised logo below the 12, and the words "JAEGER LECOULTRE" and "ATMOS" above and below the hands. A stamped "Swiss Made" logo is located above the dragonfly.
Serial number: 252201, year of manufacture 1967.
This watch is based on the calibre 528/1 movement and was listed by Jaeger LeCoultre under ref. number 5900. The model was only built from 1967-1970 and is rare to find in the trade today due to its small number of pieces.
The original transport box, the so-called "tabernacle", makes this watch doubly interesting.

Instead of the usually used levelling screws, which are operated from inside the case, the Atmos VII has one wheel each on the left and right outside of the base for levelling.

Condition:
The movement runs absolutely reliable and accurate. the case condition is also very nice. The gilding is well preserved. There are minimal traces of cleaning on the dial, barely visible to the naked eye. There are also some rusted screws on the underside of the clock which is not visible in use.
The photos are not "embellished", the case condition is as shown in the photos.

Points to know:
Although Leonardo da Vinci was already able to prove that the production of a perpetual motion machine is physically impossible, it has been tried again and again. One such attempt was made by Jean Leon Reuter, an engineer from Neuchâtel, who in 1928 invented the technology for a clock whose energy source was obtained from the surrounding 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, 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 impressively simple: a mixture of a liquid and the gas ethyl chloride is contained in a hermetically sealed capsule. As the temperature rises, the mixture expands; as the temperature falls, it contracts, causing a bellows in the pressure box 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 only one degree Celsius is sufficient to provide the energy for about two days of operation.

Price: 2650,-€