A SWISS GILT BRASS 'ATMOS' MANTEL TIMEPIECEJAEGER-LECOULTRE, 1970'sThe single train movement wound via the expansion and contraction of an aneroid chamber mounted to the rear of the mechanism and regulated by torsion escapement with rotating balance spended at the base of the movement and numbered 346230 to spension platform, the circular gilt on white baton numeral chapter ring with Arabic quarters enclosing motionwork inscribed, SWISS MADE, JAEGER_LECOULTRE, ATMOS, the rectangular five-glass case with canted angles and pin-hinged front door over plinth base incorporating adjtable front feet and bubble level to the engine-turned upper interior surface.22cm (8.25ins) high, 18cm (7.125ins) wide, 13.5cm (5.25ins) deep.