Details
Automatic watch movement M3191. Function: hour, minute, 1 eye (dual time zone at 6), and fly wheel at 12 (Bridge with blued screws). 20 jewels, 21,600 BPH. Size (Ligne): 13-1/2 Round = 30.4mm, thickness: 6.80mm. Hand sizes: 1350/860/1200/700.