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Jaeger LeCoultre, Atmos Feuille d'or, Motiv Constellation, Manufactured 1967

About the Item

Jaeger LeCoultre - Atmos Feuille d'or Motif Constellation Switzerland Brass gold plated Year of manufacture 1967 Dimensions: H x W x D: 22 x 18 x 13.5 cm Description: Atmos V calibre 526 in the special "Feuille d'or" version. This model with the motif "Constellation" was built under the ref. number 5802 from 1962-1975. Despite the rather long production time frame of 12 years, the watch appears relatively rarely in the trade. Feuille d'or translates from French as "gold leaf". The sides, the door and the glass on the top plate of the clock are lacquered from the inside. The golden lacquer finish looks amazingly similar to gold leaf. The white full dial has a compass rose in the pivot point of the hands. The entire motif of the clock is dedicated to science and the exploration of the globe of the earth and sky. Lines of longitude and latitude run across all the clock's viewing surfaces. On the two sides are old world maps. In the corners of the front door we see explorers studying and measuring the celestial globe. Serial number: 251747 Year of manufacture: 1967 Condition: The movement runs absolutely accurately and reliably. The case is in absolutely authentic original condition with light craquelure to the gilding commensurate with age and only visible on close inspection. I give a one year warranty on the movement when professionally set up and handled. Points of interest: Even though Leonardo da Vinci was able to prove that the creation of a perpetual motion machine is physically impossible, it was nevertheless attempted 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 is drawn 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 onwards, and in 1935 the production rights for the Atmos clock were transferred to Ets. Ed. Jaeger. The technical principle of the movements then built by Jaeger LeCoultre from 1936 onwards is simply captivating: 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 supply the energy for about two days of operation. This model is illustrated in the literature: Jean Lebet - Living on Air p.64.

Dimensions:

Height: 8.67 in (22 cm)Width: 7.09 in (18 cm)Depth: 5.12 in (13 cm)

Materials and Techniques:

Brass

Place of Origin:

Switzerland

Period:

1960-1969

Date of Manufacture:

1967

Condition:

Wear consistent with age and use. The movement runs absolutely accurately and reliably. The case is in absolutely authentic original condition with light craquelure to the gilding commensurate with age and only visible on close inspection.

Seller Location:

Greven, DE

Reference Number:

1stDibs: LU5419231814172

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