Hublot Classic Fusion Aerofusion Moonphase Ceramic Grey Mens Watch 517.CX.0170.LR displays the inner workings of this timepiece, protected by scratch resistant sapphire crystal glass surrounded by a ceramic case. Perfect, for horology enthusiasts who appreciate the craftsmanship of a well-made watch. A refined progression on the Big Bang’s modern and aggressive statement, the sublime timepieces of the Classic Fusion collection are- as the name suggests- distinctly classic in appearance. In regard to the latter part of the collections name, Fusion refers to the incorporation of a calculated selection of materials, such as the use of titanium and alligator leather. By blending high-grade materials Hublot create enhanced style and durability; culminating in a highly functional and beautifully designed series of watches.