MASUNAGA was the founder of the optical industry in Fukui, Japan in 1905. Meticulous craftsmanship (nearly 200 manual processes) 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 sliver rivets, MASUNAGA collection confirms what they achieved over the past century with the mission of manufacture excellent eyeglasses.