Jaeger-LeCoultre Atmos Clock


Early Atmos II Circa 1945

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    Fully Stripped Cleaned & Serviced

    From our Clock collection, we are delighted to offer this Jaeger-LeCoultre Atmos Clock. The Atmos clock with four glass domed case and canted corners modelled as their flagship 519 design. The Atmos clock beautifully engineered with a central bellows which drives the clock via expansion and contraction. The clock is finished with a silvered dial seen on early models such as this, gilded numerals and blue steel screws. The Jaeger-LeCoultre Atmos clock dates to circa 1945 and bares the reference number 19976 dating it to pre-1950.

    Jaeger-LeCoultre were founded in 1833 by Antoine LeCoultre and have grown to become one of the world’s leading luxury watch and clock manufacture from Switzerland. The company has hundreds of inventions, patents, and more than one thousand movements to their name, including the world’s smallest movement, one of the world’s most complicated wristwatches (Grande Complication), and a timepiece of near-perpetual movement (the Atmos clock).

    Atmos Clock founded in 1928, the clock is driven by a mainspring which is wound by the expansion and contraction of a liquid and gaseous ethyl chloride in an airtight chamber called bellows. When the temperature rises the ethyl chloride vaporises and expands compressing a spring and, when the temperature falls the gas condenses and the spring expands. The continuous motion winds the mainspring giving enough energy to run the entire clock. A 1-degree change in temperature is enough to run an Atmos clock for 4.3 days!

    For timekeeping, a torsion pendulum is used as it consumes far less energy than that of an ordinary pendulum as it twists on the end of the wire instead of swinging left to right. The motion is 30 times slower than that of a typical long case clock pendulum. Other than very occasional servicing due to wear the clock runs itself without any human intervention making them extremely hassle free with a totally silent movement.

    Notes All our Atmos clocks have been meticulously stripped, cleaned and serviced by our in house expert so you can buy with confidence. This ensures that all our clocks are guaranteed to run when purchased and correctly set up. All clocks will be sent with a step-by-step instruction guide on how to unpack and set correctly. If you are looking to sell your Atmos clock or Atmos collection please contact us via the contact us page where we will be more than happy to discuss purchase opportunities.For more information on the operation of Atmos clock see our article ‘The Clock That Runs On Air’.

    Measurements 23.5cm High x 21cm Wide x 16cm Deep (9.25 x 8.27 x 6.3 Inches)

    Condition Excellent condition, very little use wear at all.

    With every purchase from Jacksons Antique, you will receive our latest product guide, full tracking information so you can monitor your shipment from start to finish and our personal no-hassle, money-back policy giving you that extra confidence when purchasing.