SALT. Optics Lynette Sunglasses - Black Handcrafted Japanese Acetate 54mm Condition: Pre-owned. The lenses are in great shape with no major flaws. The frames show a few minor surface scratches from gentle use. Includes a grey hard-shell carrying case. Description: Premium eyewear from SALT. Optics, the Lynette is a sophisticated frame handcrafted in Japan using 100% premium Japanese acetate. This model features a classic shape with functional rivet hinges and specific acetate thickness transitions for a durable, high-quality fit. Brand: SALT. Optics Model: Lynette BK Frame: Handcrafted Japanese Acetate in Black Lens: High-acuity CR-39 material Origin: Made in Japan Fit: 54-17-140