Seiko Prospex Marinemaster

The Seiko Prospex Marinemaster, reference HBF003J, is a dive watch with a 42.6 mm steel case. This limited edition has a green dial and a steel rotating bezel with a ceramic display insert. The case measures 14.1 mm thick and 49.3 mm lug to lug, with water resistance to 300 metres. Self-winding calibre 8L45 has a power reserve of approximately 72 hours. A dual-curved sapphire crystal has an anti-reflective coating on its inner surface. The dial shows the date and central seconds, with LumiBrite on the hands and indices. A screw-down crown and folding clasp are included.