12 mm

Vintage Seiko 6M37 yacht timer. All functions and features work: four color dot regatta timer, beeps and alarms, preset timers, custom timer, and stopwatch. Used these functions many times in working conditions. Original two tone bracelet. In great shape for 30, minute numbers on bezel are starting to fade slightly. The stopwatch function snaps all the hands to 12 and displays the chrono on the main face. Timers run the hands backward. Function memory is maintained when display function is changed.

Vintage Seiko 6M37 yacht timer. All functions and features work: four color dot regatta timer, beeps and alarms, preset timers, custom timer, and stopwatch. Used these functions many times in working conditions. Original two tone bracelet. In great shape for 30, minute numbers on bezel are starting to fade slightly. The stopwatch function snaps all the hands to 12 and displays the chrono on the main face. Timers run the hands backward. Function memory is maintained when display function is changed.

Vintage Seiko 6M37 yacht timer. All functions and features work: four color dot regatta timer, beeps and alarms, preset timers, custom timer, and stopwatch. Used these functions many times in working conditions. Original two tone bracelet. In great shape for 30, minute numbers on bezel are starting to fade slightly. The stopwatch function snaps all the hands to 12 and displays the chrono on the main face. Timers run the hands backward. Function memory is maintained when display function is changed.