CASE: Four-body, polished, dedicated case back with engraving of the factory, hinged sterling silver cuvette, snap on case backDIAL: White with painted Arabic numerals, auxiliary dials for the seconds and the 24 hours, the 12-hour and 30-minute registers, outer graduation for the days of the month, apertures for the days of the week, the months and the moon phases. Black Feuille hands.MOVEMENT: Cal. 7761, 17 jewels, rhodium-plated, straight-line lever escapement, shock absorber, swan-neck micrometer regulator. Dial, case and movement signed and in good conditionDIAM: 38 mm THICKNESS: 14 mm