The Classic Fusion AeroFusion 517.CX.0170.LR from Hublot is a must-have for Hublot enthusiasts who are building a classic watch collection. The 517.CX.0170.LR has a round-shaped Ceramic case that is 45MM in diameter with an anti-reflective sapphire crystal and pull/push crown with a fixed ceramic bezel. It has a skeleton dial with day, month, date subdials with moon phase and polished index hour markers. The 517.CX.0170.LR is powered by the self-winding HUB1131 caliber which has a calendar, moon phase functionality with a power reserve of 42 hours. The case is paired with a black alligator leather bracelet with a Black PVD Stainless-steel fold-over clasp. It has a water resistance of 50 meters (165 feet).