7S26 23 Seiko Automatic Watch Movement is a 3 hand Automatic Watch Movement 1.50/.90/.20 (hour/minute/sweep second) with a date window at the 3 o'clock position. This is a day & date movement, you will need to use your old day dial, movement is not supplied with the day dial. This gents movement has a diameter of 27.40 mm and a height of 4.90 mm, overall movement height is 7.20 mm. 21 jewel movement. Stem is supplied with the movement. Stem is a part number 351-260. In addition the day dial gib is included, take note that the small white plastic intermediate wheel for day corrector is not supplied with the movement.