The Seiko VD72 SII quartz watch movement is a 10½-ligne caliber featuring two central hands for hour and minute along with a date hand indicator at the 2 o’clock position. The movement measures 22.60 mm in diameter with a height of 3.45 mm and a total height of 5.13 mm. It operates on a 377 battery uses hand sizes 120/70 with a 0.21 mm date indicator hand and is compatible with stem tap 0.90 mm using stem part number 351 178 or tap 0.80 mm using stem part number 351 890.