This is a 4 hand movement with 2 windows on the upper half of the movement indicating day and month, window at the 6 o'clock position indicating moonphase. This gents movement is a 10 1/2 ligne movement with dimensions 22.60 x 22.60 mm with a thickness of 3.45 mm. Hand dimensions are 170/120/70/17/18 (date/h/m/s/indicators). 0 jewel movement, uses 364 battery. Stem is part number 065-379 (tap 0.90 mm / tap 10).