7C46 20 Seiko Quartz Watch Movement is a 3 hand movement (hour/minute/small seconds) with a day and date window at the 3 o'clock position. This is a gents movement with an outside diameter of 28.60 mm (27.00 mm between 3 o'clock and 9 o'clock sides) with a thickness of 3.70 mm, overall movement height is 6.30 mm. 7 jewel movement, uses 301 battery. Stem is supplied with the movement. The day window is not included with the movement, you will have to use your old day dial from the movement you are replacing.