Rolex GMT-Master II 116710BLNR Mens Watch. Features a brushed and polished 904L Oystersteel stainless steel case and Oyster bracelet. The bidirectional rotating bezel has a black and blue cerachrom ceramic insert with a 24 hour scale. The black dial features luminescent hands and hour markers. Dial type is analog. The date is viewable through a cyclops lens at 3 o'clock. The arrow-tipped blue GMT hand circles the dial every 24 hours and allows tracking of a 2nd time zone. Powered by the Rolex Caliber 3186 self-winding automatic chronometer certified movement which boasts a 48 hour power reserve, beats at 28,800 vph and contains 31 jewels. Has a scratch resistant sapphire crystal protecting the dial. The case is round, 40mm in diameter and 12mm thick. The crown screws down using a Triplock triple waterproofness system. The case back is screwed in. The buckle is a folding Oysterlock safety clasp with Easylink 5mm comfort extension link. Waterproof to 100 meters / 330 feet. Functions--hours, minutes, seconds, date, GMT second time zone. Luxury watch style.