The Seiko VD54 SII quartz chronograph watch movement is a gents 12¾ ligne caliber measuring 26.00 × 29.50 mm with a thickness of 3.97 mm. It features central hour minute and sweep seconds hands plus three subdials including a 24 hour indicator at 3 o’clock a 60 second indicator at 6 o’clock and a 60 minute indicator at 9 o’clock. This 0 jewel movement runs on a 371 battery uses hand sizes 110/65/20/21 and supports stem tap 0.90 mm using stem 351 177 or tap 0.80 mm using stem 351 890.