Atmos clock, wooden case, coromandel veneers and ivory, J.L. Reutter, model LG I, France circa 1930.

No 14. Atmos clock, wooden case, coromandel veneers and ivory, J.L. Reutter, model LG I, France circa 1930. Movement in wooden case veneered with coromandel and ivory, built in Art Deco, silvered dial with Arabic numerals, signed ‘Atmos Pendule Perpetuelle, Brevets J.L.Reutter’ With the original Atmos clockwork. The drum of the clock contains a mercury- and gas tube. Changes in weather conditions in particular temperature causes volumes changes. This generates a thermic in the barrel. The fluctuations and rotations are collected and the energy is used to drive the movement continuously. It is therefore called ‘Pendule Perpetuele’. The invention was made by a French engineer, Jean Léon Reutter. Exceptional timepiece style wise with advanced engineering. HxWxD HxWxD 28x19x12 cm. Price on request.