Dating an atmos clock
For centuries scientists had experimented with the idea of perpetual motion and watchmakers and clockmakers yearned for a timekeeping device that would work without the need of manual winding; in short a timepiece that would continue to run under its own power.By the 1920's the closest they had come to this was the 400 day clock.
But, since Hermés went out on its own to make its very own timepieces in the late 1970s, and just last year produced its very first watch with its own proprietary movement (which we showed you first here), the relationship with JLC was put to the backseat. And, actually, there is a third party in this collaboration - Les Cristalleries de Saint-Louis.
Round gilt dial with silver painted outer rim, applied gilt hour markers and numeral quarter hour markers. Engraving to the front of base., 23 x 19 x 14 cm A Jaeger Le Coultre brass cased 'Atmos' clock, circa 1960 the gilt-finished movement wound by changes in air pressure, the 11 cm dial with Arabic and dagger numerals centred by a stylised compass, the case decorated with a star chart to front with famous a A modern Atmos 'Classique' Goldtone Jaeger-Le Coultre perpetual clock, traditional gold plated brass case with glass panels to all sides and top, spirit level to base of case, adjustable feet, the chapter ring with Roman numerals, 15 jewels, open worked gol An Jaeger-Le Coultre 'Atmos' mantel clock, the four-glass case enclosing the patent perpetual movement, the annular dial with Roman numerals at the quarters and spear point batons indicating the other hours.