IWC Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer”
IWC opens up a further chapter in the story of materials innovation. Ceratanium or Ceramized titanium is a newly developed material that combines the advantages of titanium and ceramic. Based on a titanium alloy, the material is as light, rigid and skin-friendly as titanium itself, but as wear-free, hard and scratch-resistant as ceramic with an attractive black sheen. The alloy is made specially for IWC and delivered in the form of round bars. The blanks are first machined to give them their final shape and subsequently placed in an oven. Oxygen is diffused through the material, a “phase transformation” takes place, and the surface of the metal is ceramized. The process gives it not only properties typical of ceramic, such as scratch-resistance, but also a striking, matte black colour. Unlike a DLC coating, which can chip or flake off, the ceramic surface is inseparably bonded to the substrate. IWC’s desire to create a material suitable for a black watch initiated a five-year development process. For the Aquatimer Perpetual Calendar Digital Date-Month Edition “50 Years Aquatimer” (Ref. IW379403), the world’s first wristwatch made of Ceratanium, IWC’s specialists made not only the case but also the clasp, crown and push-buttons from the same innovative material.