This hand wound Audemars Piguet Royal Oak Concept GMT Tourbillon 26580IO.OO.D010CA.01 has a titanium case that measures 44 mm in diameter and 16.06 mm thick with a glareproof sapphire crystal and caseback, a white ceramic bezel, screw locked crown and pushpieces. The dial is openworked and features second time zone indicator at the 3 0'clock mark, crown position indicator is located at the 6 o’clock and the tourbillon at 9 o’clock. White gold hands with luminescent coating, and a black anodized aluminium inner bezel. The AP 26580IO.OO.D010CA.01 is powered by the 2930 Calibre, which is crafted from white ceramic, Ceramics are nine times harder than steel. Functions of this watch include Tourbillon, GMT 24 hr, functions selection, hours and minutes. This watch is complimented by a white rubber strap with titanium AP folding clasp. It has a water resistance of 100 meters and a power reserve of up to 237 hours.