7N42 20 Seiko Quartz Watch Movement is a 3 hand movement (hour/minute/sweep second) with date at the 3 o'clock position. This gents movement is a 11 1/2 ligne movement, dimensions are 21.90 mm x 23.50 mm with a thickness of 2.90 mm. Hand dimensions are 110/65/20 (h/m/s).1 jewel movement, uses 371 battery. Stem is supplied with the movement. Stem is a part number 351-892, this stem is a tap 0.80 mm (tap 11).