JAEGER LECOULTRE. 'Atmos The Perpetual Motion Clock, 'Switzerland, 1960s.

metal, gold-plated, polished and satined. The mechanism was invented in 1928 by Jean-Léon Reutter (1899-1971). Rectangular, slightly protruding base Five-sided transparent plexiglass body with wide brass frame and beveled edges. White dial with applied scale and four passive Arabic indices. 'Perpetual Motion Mechanical Clock'
Propulsion by converting gases caused by temperature fluctuations in a capsule into mechanical energy. HxWxD: 22.5 x 18.5 x 14 cm Manufacturer and model name on the circuit board. Model number: 251045
The rotating pendulum was locked.