There are not many optical companies that have been around for over 100 years. Even more rare is the company that can produce an entire pair of glasses in one location. From raw materials (think molds, screws, hinges) to production to finish, Masunaga of Japan utilizes an integrated system created in 1905 that ensures a consistently high quality product. The finest acetates are used to create easy, timeless shapes that take their inspiration from a century of dedicated craftsmanship.