Reference : 126619LB-0003 Oyster, Dial diameter: 41 mm. Unidirectional rotatable 60-minute graduated bezel. Ceramic scratch-resistant porcelain insert. Platinum-coated numerals and graduations. Water resistant to 300 meters/1,000 feet. Permanent mechanical self-winding movement. Function hours, minutes, seconds, date. About 70 hours of power reserve. Black dial. Oyster flat three-piece link bracelet. Folding Oysterlock Clasp with Rolex Sliding Lock Extension System.