Silver-tone stainless steel case and bracelet. Fixed silver-tone stainless steel bezel. Black dial with 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: 31 mm. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: hour, minute, second, chronometer. Oyster Perpetual 31 Series. Sport watch style. Watch label: Swiss Made. Item Variations: M277200-0002. Rolex Oyster Perpetual 31 Automatic Black Dial Ladies Watch 277200BKSO.
