Manually wound mechanical movement, UG 82.1 caliber, 42 hours of power reserve, and 28800 vibrations/hour. Brushed and polished steel case measuring 42.4 mm. Fixed polished steel bezel. Anthracite dial with three chronograph counters: the 30-minute counter at 3 o'clock; at 6 o'clock the 12 hours and at 9 o'clock the small seconds. Silvered 'dauphine' hands with blued steel hand in the center for the chronograph seconds. 24-hour scale with day/night division. Sapphire crystal. Steel case back secured by 4 screws with visible movement. Original black leather strap with original Universal Genevè steel pin buckle.