Seiko Marinemaster Professional 300m Japan model SBBN033. Solid stainless steel 48mm "tuna can" style case on black silicone strap. Black dial with luminous hour markers and hands. Hardlex mineral glass crystal. This watch features a 7-jewel, Seiko 7C46 Quartz movement.
Factory Model Number. SBBN031.
7-jewel, Seiko 7C46 Quartz movement.
Day/Date calendar, window display.
Solid Stainless steel. Combination satin/polished finish. Seiko "Tuna Can" legendary style.
Uni-Directional rotating, ratcheted, 0-60 Elapsed-Time. Satin finish.
Sport style, screw-down (threaded). Factory Logo engraved/embossed.
Domed profile. Mineral glass.
Black color. Luminous ( radiation-free LumiBrite ) hour markers.
White varnished. LumiBrite radiation-free luminous filled.
Black color. Composite material (plastic or silicone or polyurethane). Factory Logo embossed.