Seiko Prospex Sea

The Seiko Prospex Sea, reference SNE439, is a dive watch with a 43.5 mm steel case. The case measures 11.6 mm thick, with a water-resistance rating of 200 metres. Solar-powered calibre V157 contains 2 jewels and operates for approximately 10 months when fully charged. A Hardlex crystal covers the dial; the dial has a date display. A silicone strap is attached to the watch; the hands and indices carry LumiBrite. Movement accuracy is plus or minus 15 seconds per month. A screw-down crown is part of the case; the lug width measures 20 mm. The watch has a unidirectional rotating bezel.