The Atmos clock embodies Jaeger-LeCoultre’s mastery of perpetual motion. Perfected in 1928, the revolutionary winding mechanism is powered by the contraction and expansion of a mixture of gases. Timeless in its elegant aesthetic, the Atmos epitomises the exceptional proficiency of Jaeger-LeCoultre’s craftsmen and women and the brilliance of the Maison’s Atelier des Métiers Rares that has inspired generations of designers.