VD51 Height 2 SII Quartz Chronograph Watch Movement VD51 SII Quartz Watch Movement is a 12 3/4 ligne (29.50 mm x 26.00 mm) Chronograph movement with a movement thickness of 4.57 mm. This movement has 3 hands in the center: hour, minute, sweep second, 2 indicator hands: 60 minute @6, small seconds @ 12 and a date window at the 3 o'clock position. This movement is the higher hand execution of the standard VD51 movement. 0 jewels. Stem 351-177. Battery 371. Hand dimensions are as follows: 110/65/20 (hour/minute/sweep seconds), 0.21 for the indicator hands.