Nickel Plated Atmos Clock from Jaeger Lecoultre, 1956

Details

Description

Silver atmos clock by jaeger lecoultre

switzerland
nickel-plated brass
year of manufacture 1956

dimensions: h x w x d: 22 … Read more Silver atmos clock by jaeger lecoultre

switzerland
nickel-plated brass
year of manufacture 1956

dimensions: h x w x d: 22 x 18 x 13.5 cm

:
atmos v calibre 526 in a nickel-plated case.
white dial ring with silver numerals 3, 6, 9, 12 and indices for the remaining hours. As is usual with the early dials - with horizontal 3 and horizontal 9.

serial number: 99354
year of manufacture: 1956

interesting facts:
even though leonardo da vinci was able to prove that the production of a perpetual motion machine is physically impossible, it has been attempted time and again. This was also the case for neuchâtel engineer jean leon reutter, who in 1926 invented the technology for a clock whose energy source is drawn from the ambient air, from the atmosphere so to speak.
in 1927, reutter presented the prototype of his clock and in 1928 he was granted a patent for his atmos i. As there were repeated problems with the production, the movements were manufactured by 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 simply captivating: a mixture of a liquid and ethyl chloride gas 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 on the back of the clock to move like an accordion. This movement continuously winds up 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 approximately two days of running time.

condition:
excellent condition. The movement has been nickel-plated and overhauled; it runs perfectly and reliably. The case has also been nickel-plated and is in perfect condition.

you will find interesting facts about the atmos from jaeger lecoultre in the specialist literature:
jean lebet - living on air this piece has an attribution mark,
i am sure that it is completely authentic and take full responsibility for any authenticity
issues arising from misattribution See less