A genuine Rolex Black GMT-Master II, featuring an automatic movement in a 40mm stainless steel case with a PVD black ceramic coating and finished in 18ct rose gold. Equipped with the Caliber 3235 self-winding mechanical movement capable of up to 70 hours power reserve. Includes a scratch-resistant sapphire crystal bezel, a black dial with luminous plots and hands, date display at the 6 position, two time zones indicated by hour hand/minute track and central seconds hand for GMT function, water resistance to 100 meters (330 ft), is based on user provided data. Note: Strap/clasp material not specified in model number but assumed standard for reference.