The JS50 Miyota Quartz Watch Movement is a two-button stopwatch chronograph featuring three central hands and three linear sub-indicators aligned along the bottom of the movement, which track stopwatch seconds, a 60-minute counter, and 24-hour time. It is a 12½ ligne movement measuring 28.20 mm by 26.00 mm, with a movement thickness of 4.18 mm and a total height of 6.00 mm. The hand sizes are 120/70/17/26 for the hour, minute, sweep second, and indicator hands respectively. This movement has no jewels, is powered by a 364 battery, and uses stem part number 065-505.
