【What is TITANOS?】 An original brand by Maruman Optical. In 1982, they pioneered the use of titanium, previously used in the military and aerospace industries, for eyeglass frames. Their groundbreaking first model, "TITANOS T701," which changed the conventional wisdom of eyeglasses, was displayed for five years at the National Museum of Nature and Science as an outstanding product proudly made in Japan. Since then, it has become a synonym for sturdy titanium frames, a brand trusted by many optical shops. "100% Made in Japan," with every single screw made in Japan. To maintain the highest quality, all processes, from parts processing to assembly and surface treatment (ion plating, plating, painting), are done domestically in Japan. It is built to be sturdy, pursuing not only comfort but also durability and ease of adjustment. Prescription lenses 50□20 140 The temple tips have scratches and dents.