IWC Schaffhausen has been the official engineering partner of the Mercedes-AMG Petronas Formula One' Team since 2013. The Pilot's Watch Chronograph 41 Edition 'Mercedes-AMG Petronas Formula One' Team' is the first official team watch developed by IWC. The 41-millimetre Pilot's Chronograph is crafted from lightweight and remarkably rigid grade 5 titanium. Offering the highest strength-to-density ratio of any metal, titanium is also widely used in automotive engineering to produce car parts subject to immense stresses, such as engine valves. In addition, titanium is also biocompatible and highly corrosion-resistant. After machining and sandblasting, the surface retains an attractive greyish shimmer. A black dial with printing and luminescence in the team's signature shade of green complement the distinctive design. The IWC-manufactured 69385 caliber, a chronograph movement in classic column-wheel design consisting of 231 individual parts, is visible through a sapphire glass back. The bi-directional pawl winding system builds up a power reserve of 46 hours. The chronograph is delivered with two different straps: one black embossed calfskin strap, and one green rubber strap. Thanks to the integrated EasX-CHANGE®, the straps can be exchanged quickly and easily at the touch of a button without additional tools.