Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black dial with luminous silver-tone hands and index hour markers. Arabic numerals appear at the 3, 6 and 9 o’clock positions. Minute markers around the outer rim. Dial Type: Analog. Rolex calibre 3230 automatic movement, containing 31 Jewels, bitting at 28800 vph, and has a power reserve of approximately 70 hours. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 36 mm. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: hour, minute, second, chronometer. Explorer Series. Luxury watch style. Watch label: Swiss Made. Item Variations: m124270-0001, 124270-0001, 124270. Rolex Explorer Automatic Chronometer Black Dial Men’s Watch 124270BKASO.