One of the first and original "Tuna Can" styles from Seiko Marinemaster series made in 1983. Powered by Seiko quartz caliber 7C46, black dial with large luminous markers and hands, on black rubber strap.
SEIKO Quartz Analog ( Battery powered ).
Day/Date calendar, window display.
Highly polished finish, solid 316L Stainless steel.
Uni-Directional rotating, ratcheted, 0-60 Elapsed-Time. Steel insert.
Sport style, screw-down (threaded).
Very slight dome profile. Mineral glass. Couple of light scuffs in center.
Black color. Luminous ( radiation-free LumiBrite ) hour markers.
LumiBrite radiation-free luminous filled. Steel color.
Black color. Composite material (plastic or silicone or polyurethane).