Stainless steel case with a stainless steel Rolex oyster bracelet. Fixed domed stainless steel bezel. Silver dial with luminous silver-tone hands and index hour markers. Arabic numerals mark the 3, 6 and 9 o'clock positions. minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Automatic movement with a 48 Hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case diameter: 31 mm. Round case shape. Fold over clasp. Water resistant at 100 meters / 330 feet. Functions: hour, minute, second. Luxury watch style. Watch label: Swiss Made. Rolex Oyster Perpetual 31 mm Silver Dial Stainless Steel Rolex Oyster Automatic Ladies Watch 177200SAPSO.