Masunaga Optical was the founder of the optical industry in Fukui, Japan in 1905. In 1970, history was created when one of their products, the "Custom 72", was placed in the time capsule at the World's Fair at the Osaka Expo. The birth of the MASUNAGA Collection pays tribute to the "Custom 72's" classic and timeless design. Meticulous craftsmanship is evident in the countless steps of the manufacturing process. Masunaga does not rush the process. No shortcuts are taken, no compromises are made in the creation of each MASUNAGA frame. Featuring beautifully hand polished Japanese acetate, durable seven barrel hinges, distinctive silver rivets, MASUNAGA collection confirms what Masunaga Optical has achieved over the past century.