Thanks to his acquaintance Cesar de Trey (1876-1953), who will aswell accord to the conception of the Reverso), Jacques-David LeCoultre discovers the alluring "eternal" clock. Afterwards a abundant analysis of its mechanism, he addendum that alone the finest watchmakers will be able to acceleration to this abstruse challenge. Jean-Leon Reutter (1899-1971)shares this confidence and afterwards years of analysis was issued a apparent in 1926. In 1928, the aboriginal prototypes of a alarm that draws its activity from the aboriginal atmospheric variations is presented. Entirely fabricated aural the Manufacture back 1936, the Atmos has become a fable of its time. Its authority earns it cachet as the official allowance of the Swiss government.
Since some time above-mentioned to 1937 a Swiss corporation, Le Coultre & Cie, S.A. (hereafter Le Coultre Co.), had bogus a alarm different in the archival apple by acumen of its antecedent of energy. Although bounce driven, it was/is so apish that the bounce is anguish by actual slight changes in the temperature of the atmosphere. No chiral ambagious or added alien antecedent of activity is required. These actualization induced the architect at an aboriginal date to name the alarm 'Atmos -- the Perpetual Motion Clock.'