Dial Diameter: 42mm Yellow Gold Case. Screw it back. Screw-down crown. Twinlock double waterproof system. Notched bezel with bidirectional rotatable Rolex ring command. Scratch-resistant sapphire crystal, Cyclops with date and double anti-reflective coating. Intense white dial. Indexed hour markers with chromatic light. Mechanical, self-winding, dual time zone, annual calendar movement. The power reserve is about 72 hours. Functions: central hours, minutes and seconds. 24-hour display on an eccentric disc.
Water Resistance: 100 meters �C 330 feet. Clasp Type: Folding Oysterlock with Easylink 5 mm Comfort Extension.