Original Listing Description

Vintage Jaeger LeCoultre Atmos Clock 540 SWISS 24K gold plated bronze frame NOSFrom my late fathers estate. He got this as a gift in I think 1988 and never used it, said it just wasn't his "Style", lol. I do not know anything else about it. I do know its been in the box until I took pics of it, so will it need service after sitting for so long? I just don't know.Item under consideration is a 9 inch Tall, ATMOS (atmospheric) CLASSIC MANTLE CLOCK, Serial Number 651946 with a jeweled 540 movement and a gilt gold rectangular case. Produced in 1987 by Jaeger LeCoultre located in Geneva, Switzerland. Clock is glass encased with a 24K gold plated bronze frame. Has a Rare Square dial with a gold gilt bezel, applied gold Arabic numerals and indexes positioned on a lacquered white faced dial, 13 jewel 540 movement, and a locking mechanism for transport. The clock is equipped with a glass bubble level and two adjustable front feet to assist in the leveling of the clock, necessary for accurate operation. Clock is working smooth as it should and keeping good time, without fail. Note: Clock is NEW OLD STOCK, never used, never activated and placed in storage. Atmos Clock operation: The Atmos clock operates with no external power source use, never needs to be manually wound by hand or require use of a suspended weight, as most pendulum clocks do. Instead, the Atmos clock gets its power to operate from minute changes in atmospheric temperature. No batteries, no electricity, no manual windings. Extremely accurate and silent. The technical principle behind the Atmos operation is a beguiling one; inside a hermetically sealed capsule is a mixture of gas and liquid which expands as the ambient temperature rises and contracts as it falls, causing the capsule surface to move like a concertina. This motion is utilized to wind up the clock’s mainspring. A variation in temperature of one degree C provides sufficient energy for 48 hours of clock operation. The Atmos is specifically designed and built so that there is minimal resistance opposing this small amount of created energy. To convert this small amount of energy into motion, everything inside the Atmos has to work as smoothly and gently as possible Therefore all its parts are made of the highest quality material with the greatest of precision, and are practically wear free. Theoretically, an ATMOS clock should expect a service life of at least 600 years, although, with today’s air pollution, it is recommended to service every 20 years, or so. Connoisseurs of elegant forms, precious materials, and traditional craftsmanship are, also, not disappointed with the Atmos. The frame of this Atmos, under consideration, is 24K Gold plated. Every Atmos is made by hand, with some models requiring a full month to complete a single clock. There are an additional 5 weeks of testing, alinements and fine adjustments that every ATMOS has to successfully complete before acceptance by the master watchmakers of Jaeger LeCoultre. The subtle union between the classic and the modern is the secret to the Atmos collection's timelessness. Its unique design allows the observer to view the complexity and operation of its machinery from all angles. The ring shaped balance wheel seems to float in the air, charting the course of time with utter ease and grace. The Atmos clock in its gilded cage is a genuine icon of style and perfection. A unique gem of horological technology. Temperatures changes are its source of power and its balance wheel will operate as long as the sun will shine. Jaeger LeCoultre's ATMOS Clock is the official gift of the Swiss Confederation, a prestigious group of nation states consigned to armed neutrality. Many historical and political leaders have had the experience of displaying an Atmos clock on their bookshelves and desks. Dimensions: Height- 9.1 inch. Width- 7.1 inch. Length- 5.1 inch. Weight- 10 pounds, 10.4 ounces. Background. In 1928 a French engineer, Jean-Lean Reutter, designed a completely revolutionary clock. A Clock drawing its power to operate from variations in ambient temperature. Jaeger LeCoultre transposed this concept into a technical reality that they perfected and patented. (Condition: Brand New)

Note: This item has been sold and is no longer available. This page serves as a historical price reference for clocks collectors and appraisers.