SW500 MP b

Cam-operated monopusher chronograph with date, featuring a single pusher at 2 o'clock. Displays hours, minutes, small seconds at 9 o'clock, a central 60-second counter, and a 30-minute register at 12 o'clock (with optional 15-minute version). Includes self-winding ball-bearing rotor, quick-set date, stop-second, 28,800 vph (4 Hz) frequency, 25 jewels, and a 62-hour power reserve.