Stainless steel case with a oystersteel bracelet with 18kt yellow gold center links. Uni-directional rotating yellow gold bezel with black cerachrom fill. Black dial with luminous yellow gold-tone hands and dot hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o’clock position. Rolex calibre 3235 automatic movement with a 70-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 43 mm. Fold over clasp with a safety release. Water resistant at 1220 meters / 4000 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Item Variations: 126603-0001, M126603-001, 126603. Rolex Sea-Dweller Automatic Chronometer Oystersteel and Yellow Gold Watch 126603BKSO.