This Rolex Gmt-Master II 40 mm in 18 ct yellow gold case with the lugs set with brilliant diamonds, an 18K yellow gold bezel set with diamonds, sapphires, and rubies, 24 hour hand, independent 12 hour hand, black dial with date, and has a monobloc middle case, screw-down case back and winding crown. Protected by a scratch-resistant sapphire crystal, with cyclops lens over the date. Complimented by an 18 ct yellow gold oyster bracelet that has a diamond encrusted center link with a fold over clasp. The power behind the 116718 is the 3186 Manufacture Rolex Caliber with self-winding movement its functions include conventional hour, minute, and seconds hands, it features a 24-hour hand to display a second time zone. It is water resistant to 100 meters / 330 feet, and it has a power reserve of approximately 50 hours.