Stainless steel case with a stainless steel Rolex oyster bracelet. Fixed stainless steel bezel. Black dial with luminous silver-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. Automatic movement with a 50-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case diameter: 42 mm. Round case shape. Band width: 20 mm. Oyster clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Rolex Explorer II Black Dial Stainless Steel Rolex Oyster Automatic Mens Watch 216570BKSO.