Matsuda M1009 Titanium & Acetate Eyeglass Frames Matte Caramel Crystal MSRP $500 The Essential Optical Collection features new designs drawing upon classic Matsuda details made of pure titanium, stainless steel, and premium Japanese acetate. Matsuda's legendary Japanese eyewear collection has long been known for its exquisite craftsmanship and impeccable attention to detail, design, and use of engraved metals. * Material: Japanese Acetate and Titanium * Made in Japan * Size: 51-22-145 * New with box All Matsuda frames are hand crafted in the city of Sabae, Japan. Over 250 steps are required to create one Matsuda frame by craftsman that have mastered their work through decades of learning and knowledge being passed on from generation to generation. The most preferred materials used by Matsuda are their Japanese titanium and acetate. Both materials are lightweight and durable with an array of colors and finishes diversifying each pair. Their Japanese titanium is stronger than steel yet lighter than aluminum while being completely hypoallergenic. In order to create a perfect finish, each titanium frame is put through a drum polisher for over 24 hours making sure there are no defects throughout its build.