The Matsuda - M3145 is a vintage navigator shape with distinctive asymmetrical rims cut from solid titanium. A high-arched top bar crowns the frame, paired with iconic lens colors that ground the design in classic sunglass tradition. Unconventional geometry executed with disciplined metalwork—the meticulous construction and considered proportion that have defined Matsuda for decades. The titanium is cut and finished by hand, each rim's uneven line deliberate rather than decorative. Handmade in Japan. Includes Matsuda box, case, and cleaning cloth.