Silver-tone stainless steel case with a silver-tone stainless steel bracelet. Uni-directional rotating coin edge stainless steel bezel with a black ion-plated count-up elapsed time top ring. Black dial with luminous silver-tone hands and indexes hour markers, minute markers around the outer rim hour markers. Dial Type: Analog. Luminescent hands and dial markers. Date display at the 6 o'clock position. One subdial displaying: small second at the 10 o'clock position. Oris Calibre 643, base ETA 2836-2 Automatic movement, based upon ETA 2836-2, containing 27 Jewels, bitting at 28800 vph, and has a power reserve of approximately 38 hours. Scratch resistant sapphire crystal. Screw down crown. Screw down steel case back. Round case shape, case size: 47 mm, case thickness: 16.1 mm. Expansion clasp. Water resistant at 1000 meters / 3300 feet. Functions: date, hour, minute, second. Additional Info: helium valve. Divers Series. Dress watch style. Watch label: Swiss Made. Item Variations: Oris 643 7609 8454 MB, 64376098454MB, 643.7609.8454.MB. Oris Divers Men's Automatic Watch 643-7609-8454MB.