PROSPEX: Challenges every limit, with a collection of timepieces for sports lovers and adventure seekers whether in the water, in the sky or on land. Since launching Japan’s first diver’s watch in 1965, Seiko’s innovative technology has changed global standards. We are constantly striving to bring ever greater reliability and safety to both professional and recreational divers.
NEW MARINE MASTER 300: This watch is known as the Marine Master 300 due to its 300m water resistance and single piece construction, making it the optimal watch for diving.
The watch features a matt black dial and Lumibrite batons and hands and a gold toned second hand and a date window. The monobloc case is crafted from a single piece of metal; meaning that the watch is assembled from the front. This takes out the need for a helium escape valve which is normally required when diving. The 44.3mm wide case is stainless-steel diashield hard coating and is finished off with zaratsu polishing. The watch also features a ceramic, luminescent one-way rotating bezel. The watch also has sapphire crystal glass and is finished off with a stainless-steel band and comes with an additional silicone strap. The watch is beautifully presented in a presentation box. The automatic movement in this watch is based on the GRAND SEIKO movement 9S55 and has a 50 hour power reserve.
-Approx 50 Hour Power Reserve
-Sapphire Crystal Glass
-300m Water Resistant
-3 Year Warranty
MODEL NUMBER: SLA021J EXCLSIVE DEALER MODEL