ST1902 Movement Manual Winding Mechanical Chronograph Movement Clock Movement Men’s Watches Man Watch Repair Parts. Product Type: ST1902 Movement Movement Calibre: about 31.3 mm Movement height: about 6.25 mm Beats Per Hour: 21600 Crown Position : Crown at 3 o’clock Function: 6 hands movement, middle hour, minute and second hand, 3 o’clock dial chronograph minute…