7N39 Seiko Quartz Watch Movement is a 2 hand movement (hour/minute) with date at the 3 o'clock position. This gents movement is a 10 1/2 ligne movement, dimensions are 21.30mm x 21.50mm with a thickness of 2.50mm. Hand dimensions are 110/65 (h/m). 1 jewel movement, uses 371 battery. Stem is supplied with the movement. Stem is a part number 351-892, this stem is a tap 0.80mm (tap 11).