A RARE EARLY JAEGER LECOULTRE LACQUERED BRASS BREVETS REUTTER ATMOS II CLOCK CIRCA 1939, NO. 7447 the case with canted angles, the glazed top secured to the base with two screws and lifting off to access the movement, the base signed 'ATMOS BREVETE REUTTER JAEGER-LE-COULTRE FABRIQUE EN SUISSE - SWISS MADE', the top of the movement numbered 7447,, the dial with applied Arabic numerals and skeletonised centre revealing the movement within, powered by changes to the air pressure, 23.5cm high Please Note: This lot will be on display at our South Kensington branch from 29th May until it goes on view at Chiswick from 7th June. Provenance: From a private collection. Condition: Seen running in owner's home and recently serviced, in original condition, but not fully tested or guaranteed. Notes: On 1 June 1929, Compagnie Générale de Radio (CGR) in France began manufacturing the first commercial model, Atmos 1, which used a mercury and ammonia bellows power source. On 27 July 1935, Jaeger-LeCoultre took over production of Atmos 1 while it developed a second design which used the present ethyl chloride power source. This model later named the Atmos 2, was announced on 15 January 1936, but problems delayed full production until mid-1939. Subsequent models were based on this design.
A RARE EARLY JAEGER LECOULTRE LACQUERED BRASS BREVETS REUTTER ATMOS II CLOCK CIRCA 1939, NO. 7447 the case with canted angles, the glazed top secured to the base with two screws and lifting off to access the movement, the base signed 'ATMOS BREVETE REUTTER JAEGER-LE-COULTRE FABRIQUE EN SUISSE - SWISS MADE', the top of the movement numbered 7447,, the dial with applied Arabic numerals and skeletonised centre revealing the movement within, powered by changes to the air pressure, 23.5cm high Please Note: This lot will be on display at our South Kensington branch from 29th May until it goes on view at Chiswick from 7th June. Provenance: From a private collection. Condition: Seen running in owner's home and recently serviced, in original condition, but not fully tested or guaranteed. Notes: On 1 June 1929, Compagnie Générale de Radio (CGR) in France began manufacturing the first commercial model, Atmos 1, which used a mercury and ammonia bellows power source. On 27 July 1935, Jaeger-LeCoultre took over production of Atmos 1 while it developed a second design which used the present ethyl chloride power source. This model later named the Atmos 2, was announced on 15 January 1936, but problems delayed full production until mid-1939. Subsequent models were based on this design.
.jpg "Source: Christie's")
.jpg "Source: Christie's")
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
