The GM15 Miyota Quartz Watch Movement is a two-hand movement (hour and minute) with a date display at the 3 o’clock position. It is a 10½ ligne movement measuring 23.70 mm × 22.60 mm with a thickness of 2.71 mm and an overall height of 3.87 mm. The hand dimensions are 120/70, it has 0 jewels, operates on a 364 battery, and uses stem part number 065-543 (tap 0.90 mm / tap 10).