LeCoultre Atmos Atmosphere clock

Vintage Steinway Estate 1940's LeCoultre Atmos clock. Clocks in great condition and runs great. Has some tarnishing from 72 years. Atmos is the brand name of a mechanical torsion pendulum clock manufactured by Jaeger-LeCoultre in Switzerland which does not need to be wound manually. It gets the energy it needs to run from temperature and atmospheric pressure changes in the environment, and can run for years without human intervention. New these Clocks retail new starting at $6,000 to $30,000.