OS21 Citizen Miyota Watch Movement

The Miyota OS21 is a 13 ½ ligne quartz movement with a thickness of 5.10 mm. It features a two-eye chronograph layout with hand sizes of 120/70/18 for the hour, minute, and seconds hands, while the central chronograph seconds hand uses a size 27 hand. This movement includes chronograph stopwatch functionality along with a date display, offering reliable quartz timekeeping in a simplified chronograph configuration suitable for sport and multifunction watch designs.