Rolex Lady Datejust Black Roman Dial 18k White Gold Diamond Case and Bezel Oyster Bracelet Watch 179159BKRO. 18k white gold diamond case with a 18k white gold oyster bracelet. Diamonds and 18k white gold bezel. Black dial with silver tone hands and Roman numeral hour markers. Minute markers around the outer rim. Self-winding movement. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case diameter: 26 mm. Round case shape. Oysterlock clasp. Water resistant at 100 meters/ 330 feet. Functions: hours, minutes, seconds, date.