Seiko Prospex

The Seiko Prospex, reference SLA057JC, is a dive watch with a 42.6 mm steel case. This is a limited edition of 600 pieces. The case is 13.1 mm thick, with a lug-to-lug measurement of 49.3 mm and a water-resistance rating of 200 metres. Self-winding calibre 8L35 contains 26 jewels and has a power reserve of approximately 50 hours. Over the dial is a dual-curved sapphire crystal with an anti-reflective coating on the inner surface. The dial has a date display; the hands and indices carry LumiBrite. Movement accuracy is plus 15 to minus 10 seconds per day. A screw-down crown is part of the case.