
Manual-winding cam-actuated chronograph with two push-buttons, showing hours, minutes, and small seconds at 9 o'clock. Features a central 60-second chronograph hand and a 30-minute counter at 3 o'clock (with an optional 15-minute version in the SW511 M BH b). Includes a stop-second device, 28,800 vibrations per hour (4 Hz), 23 jewels, and a 63-hour power reserve.
No watches found with this movement