YM87 Epson Quartz Watch Movement YM87 Epson Yacht Timer with Alarm is a 3 hand movement (hour/minute/sweep seconds) with 3 indicators, and a date window at the 3 o'clock position. The indicator at the 6 o'clock position sets the mode, the indicator at the 9 o'clock position is the small second hand records up to 60 seconds, and the indicator at the 12 o'clock position is a small hour & minute hand (alarm). This gents movement is a 12 ligne movement, dimensions are 24.00 mm x 27.6 0mm with a thickness of 3.70 mm. Hand dimensions are 110/65/21/21/90/65 (h/m/s/indicators/alarm (hour/minute)). 0 jewel movement uses a 395 battery, the stem for this movement is a part number 351-584 (tap 0.90 mm, tap 10).