M3126 Eyeglasses by Matsuda. Color: Antique Gold / Dark Tortoise, Antique Silver / Grey Crystal, Brushed Gold / Dark Navy Crystal, Palladium White / Black, Size: 49-22-145. Introducing the M3126 by Matsuda - a rugged optical frame with classic square lenses and Japanese acetate inserts. The hand-polished acetate and integrated side shields combine subtlety with modern design. Meticulously crafted in Japan with precious metal finishes, this optical frame is truly one of a kind.