Titanium is the fourth most abundant structural metal on Earth. An incredible and lightweight material that doesn’t react to sunlight, saltwater or body chemistry, it reduces the potential of metal allergic reaction and is corrosion-resistant. In 1970, we launched the world’s first watch using solid titanium: the X-8 Chronometer. The name is a combination of X – representing the unknown – and 8, evoking the infinity symbol. It’s an expression of the boundless possibilities of titanium, a relatively unknown material at the time. We went on to build our Super Titanium™ collection, producing notable timepieces throughout the year.