The Seiko VJ21 quartz watch movement is a ladies three hand caliber featuring hour minute and sweeping seconds. This 6¾ × 8 ligne movement measures 15.30 mm × 17.80 mm with a thickness of 2.38 mm an overall height of 3.82 mm and a height over the dial seat of 1.48 mm. It has zero jewels uses hand sizes 120/70/17 and operates on a 364 battery. The movement uses stem part number 351 333 tap 10.