Seiko Prospex Sea

The Seiko Prospex Sea, reference SLA039J1, is a dive watch with a 44.8 mm case. This is a limited edition of 1100 pieces. The case measures 15.7 mm thick, with a water-resistance rating of 300 metres. Self-winding calibre 8L55 contains 37 jewels and has a power reserve of approximately 55 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 dial has LumiBrite on the hands and indices. Movement accuracy is plus 15 to minus 10 seconds per day; the lug width measures 19 mm. A silicone strap is attached to the watch.