Seiko Prospex

The Seiko Prospex, reference SRQ043J1, is a chronograph with a 42.5 mm steel case. The case is 15.1 mm thick, with a lug-to-lug measurement of 50 mm and a water-resistance rating of 100 metres. The movement is self-winding calibre 8R46, which has a power reserve of approximately 45 hours. The watch has a curved sapphire crystal with an anti-reflective coating. The movement is visible through the display back of the case. Movement accuracy is minus 15 to plus 25 seconds per day. A steel bracelet has a three-fold clasp with push-button release.