M265 Jean-Léon REUTTER - Atmos clock, in chromed metal and glass slabs

Jean-Léon REUTTER - Atmos clock, in chromed metal and glass slabs, rectangular in shape, champagne dial, stylized Roman numerals, pierced hands, open window for observing the balance, signed ATMOS perpetual pendulum.
Screw-down dial and back, R — A numbered adjustment wheel on the back. The front panel opens for time adjustment. On the back a riveted plate, engraved Brevets J.L. REUTTER, S.G.D.G, Made in France. Note the magnificent Art Deco style typography of the numbers, which can be compared to the works of Charles Peignot and Cassandre.
Chrome wear on the base and top. Perpetual mechanical movement.
Numbered on the 3581 movement.
Circa 1935.

H. 25.50 L. 44.80 P. 13.20 cm

Jean-Léon REUTTER (1899-1971), engineer from Neuchâtel, trained at the Federal Polytechnic School of Zurich, then at the Higher School of Electricity in Paris, he was deeply attached to the research of perpetual motion. He focused his studies on the use of variations in temperature and atmospheric pressure. For this it uses a capsule sensitive to these variations, until obtaining an almost "perpetual" mechanism of very great energy sobriety. He filed the first patent in 1929, supported by the Compagnie Général de Radiologie de Paris. The meeting of Jean-Léon Reutter and Jacques-David LeCoultre, who bought the patent in 1935, allowed the invention to become a true emblem of the symbiosis between scientific research and watchmaking.