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Early ATMOS II Clock from 1949, Jaeger-LeCoultre, Classic Design, White, Gold



Early and classic ATMOS II Switzerland Brass gold plated Year of manufacture 1949 Dimensions: H x W x D: 23.5 x 21 x 16.5 cm Description: Atmos II in matte brushed gold plated case with polished stands. Blued screws, regulation screw on the back, rotating pendulum with fine vertical stripes divided into 8 segments. Dial ring with horizontal 3 and horizontal 9. The serial number on this early Atmos clock is not yet engraved on the top, but on the front of the movement plate. Serial number: 22336 Year of manufacture: 1949 Condition: The clock is freshly revised and runs absolutely reliable and accurate. Case with minimal signs of use, light "cleaning wear" to corners and edges. Photos are not "embellished", case condition is as shown in photos. Fun Facts: In 1927, the young engineer Jean-Léon Reutter presented the prototype of the Atmos clock he had developed. The response in the press was great and so he signed a contract with the Compagnie générale de radiologie, which built and distributed the "Atmos I" under Reutter's direction from 1930. Since there were always problems with the clocks, the movements were manufactured by Le Coultre et Cie in Switzerland from 1933 and in 1935 the production rights of the Atmos were transferred to Ets. Ed. Jaeger. They focused on developing a simpler and more robust engine and from 1938 the era of the Atmos by Jaeger-LeCoultre began. The "clock that lives on air" uses the "breathing movements" of a gas-filled bellows created by temperature fluctuations to wind the movement. The movement of the watch is conspicuous by its cylindrical box on the back. Inside it, a bellows-shaped expansion chamber contains chloroethyl, a gas that expands particularly strongly between 10 °C and 27 °C. The movement is then wound up. A temperature difference of just one degree Celsius winds the clock for 48 hours. This interesting winding mechanism is complemented by an excellent movement of extreme precision with a heavy torsion pendulum. The condition for the accuracy of the clock is a stable and vibration-free installation. It is also worth mentioning the absolute environmental friendliness of the clock, which does not need a battery or any other electric drive, despite the unlimited running time. For decades, the Atmos has been the official state gift of Switzerland to prominent visitors, e.g. politicians from abroad. [Source: Jean Lebet - Living on Air / Jürgen Abeler - Ullstein Uhrenbuch] Interesting facts about the ATMOS from Jaeger LeCoultre can be found in the technical literature: Jürgen Abeler - Ullstein Uhren Buch p. 173 Negretti / De Vecchi - Faszination Uhr p. 195.


  • Dimensions
    Height: 9.45 in. (24 cm)Width: 8.27 in. (21 cm)Depth: 6.3 in. (16 cm)
  • Style
    Mid-Century Modern (Of the Period)
  • Materials and Techniques
  • Place of Origin
  • Period
  • Date of Manufacture
  • Condition
    Wear consistent with age and use. The clock is freshly revised and runs absolutely reliable and accurate. Case with minimal signs of use, light "cleaning wear" to corners and edges. Photos are not "embellished", case condition is as shown in photos.
  • Seller Location
    Greven, DE
  • Reference Number
    1stDibs: LU5419224072112

Shipping & Returns

  • Shipping
    $121.02 Standard Parcel Shipping
    to anywhere in the world, arrives in 8-18 days.
    We recommend this shipping type based on item size, type and fragility.
    Customs Duties & Taxes May Apply.
    Ships From: Münster, Germany
  • Return Policy

    A return for this item may be initiated within 14 days of delivery.

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About the Seller
5 / 5
Located in Greven, Germany
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