M3128 Sunglasses by Matsuda. Color: Ruthenium/Matte Black / Pink Gradient, Antique Gold/Dark Tortoise / G-15, Brushed Gold/Black / Brown Gradient, Palladium White/Black / Grey Gradient, Size: 48-22-140. The Matsuda M3128 frame is a unique and lightweight combination of titanium and Japanese acetate construction. The round lens style with aviator bridge creates a timeless look that is sure to turn heads. The intricate engraving throughout the frame gives it a subtle detail that adds to its classic style.