Stainless steel case with a stainless steel bracelet. Uni-directional rotating stainless steel bezel with a black ceramic top ring. Black dial with luminous silver-tone hands and index hour markers. Arabic numerals mark the 6, 9 and 12 o'clock positions. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Omega calibre 8800 automatic movement with a 55-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Transparent case back. Case size: 39.5 mm. Case thickness: 14.16 mm. Round case shape. Band width: 21 mm. Fold over clasp with a push button release. Water resistant at 600 meters / 2000 feet. Functions: date, hour, minute, second, co-axial escapement, chronometer. Additional Info: helium escape valve. Dive watch style. Watch label: Swiss Made. Item Variations: 21530402001001. Omega Seamaster Planet Ocean 600 M Automatic Black Dial Mens Watch 215.30.40.20.01.001.