Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black dial with luminous silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Rolex calibre 2232 automatic movement, containing 31 Jewels, bitting at 28800 vph, and has a power reserve of approximately 55 hours. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 28 mm. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: hour, minute, second, chronometer. Oyster Perpetual 28 Series. Luxury watch style. Watch label: Swiss Made. Item Variations: M276200-0004. Rolex Oyster Perpetual 28 Automatic Chronometer Black Dial Ladies Watch 276200BKSO.