Skull 505.UC.0170.VR.SKULL Hublot. This Hublot Classic Fusion Tourbillon Skull watch has Black Ceramic bezel with 6 screws and Silver skeletonized dial with Black-tone hands. Sapphire crystal protects both sides of the watch. Black calfskin strap with Fold Over buckle. Manual Movement, Analog display. This watch is water resistant up to 30 meters. The Watch comes with 45 mm Ceramic case. Skull 505.UC.0170.VR.SKULL Hublot Ceramic Watch.