IWC Schaffhausen complements its “Colors of TOP GUN” collection with the Big Pilot’s Watch Perpetual Calendar TOP GUN Lake Tahoe. The new model features a 46.5-millimeter white ceramic case, a black dial, and black hands with white Super-LumiNova®. Developed during the 1980s, IWC’s legendary perpetual calendar automatically recognizes the different lengths of the months and leap years. The timepiece is powered by the IWC-manufactured 52615 caliber, which can be observed through the sapphire glass case back.