Citizen has always strived to innovate. When it comes to the materials we use we take the same approach. In 1970, we launched the world’s first watch using solid titanium that is light-weight, hypoallergenic and resistant to rusting. By applying Citizen's proprietary surface hardening technology, Duratect, to crafted solid titanium, we created Super Titanium™. Achieving more than 5 times the hardness of stainless steel and providing better wearing comforts, Super Titanium™ represents Citizen's pursuits for bringing something better to people’s life.