The Audemars Piguet Royal Oak Concept GMT Tourbillon embodies the iconic Royal Oak shape with an updated futuristic feel. this timepiece is equipped with an octagonal bezel and dial-free architecture. The 44mm titanium case features a black anodized aluminum bridge over an open-worked hand-wound movement. It comes on a white rubber strap with a titanium AP folding-clasp and glareproof sapphire-crystal caseback.