YM15 Epson Chrono Quartz Watch Movement YM15 Epson Quartz Watch Movement is a chronograph movement with 3 hands in the center (hour/minute/1/5th seconds center chronograph hand), with 3 indicators: 24 hours @ 3, small seconds @ 9, 60 minutes chrono. @ 12, there is a calendar window @ 9 o'clock. This movement has 2 pushers at the 2 and 4 o'clock position to operate the chronograph functions. This is a gents 12 ligne movement with dimensions 27.60 mm x 24.00 mm, with a height of 4.34 mm. The stem number for this movement is 351-584. Battery: 395. Hand sizes: 110/65/21/21 (hour/minute/center seconds/indicators).