SW532 a

Cam-actuated chronograph with two push-buttons. It displays hours, minutes, small seconds at 9 o'clock, a central 60-second counter, a 30-minute counter at 12 o'clock (optional 15-minute version), a 12-hour counter at 6 o'clock, and a central 12-hour GMT hand with a day/night disc indicator at 3 o'clock. This self-winding movement features a ball-bearing rotor, quick-set date and GMT, stop-second device, 25 jewels, and a 62-hour power reserve at 28,800 vibrations per hour.