This is a 3 hand movement (hour/minute/sweep seconds) with 3 indicators, and a sun & moon dial at the 3 o'clock position. The indicator at the 6 o'clock position records up to 60 seconds, the indicator at the 9 o'clock position records up to 60 minutes, and the indicator at the 12 o'clock position records 1/10th seconds. This gents movement is a 12 3/4 ligne movement, dimensions are 26.00 mm x 29.50 mm with a thickness of 4.57 mm. Hand dimensions are 110/65/20/20 (h/m/s/indicators). 0 jewel movement, uses 371 battery. Stems are available in a multiple of stem thread (tap) diameters. Tap 0.90mm (10) use stem number 351-178, Tap 0.80mm (11) use stem number 351-890. Total movement height is 6.94mm, height over dial seat is 2.28mm.