Tsuno Chrono Racer is crafted in Super Titanium, 40% lighter and 5x more durable than stainless steel. Inspired by Citizen's original 1972 introduction of the Challenge Timer collection, it features 1/5th of a second flyback chronograph, tachymeter, alarm, complete with luminous hands and markers a domed sapphire crystal over a sharp green dial. "Horned" in Japanese, the "Tsuno" bull head construction has the crown and chronograph pushers located at the top of the case. This is the ultimate timepiece for a racing enthusiast and collector.