Bersigar luxaura 1682 Premium materials and casual design, Sapphire dial window with AR coating, stainless steel construction with screw-down crown, solid case back, solid and flexible watchband with a classic fold-over clasp. Bersigar luxaura 1682 Premium materials and casual design, Sapphire dial window with AR coating, stainless steel construction with screw-down crown, solid case back, solid and flexible watchband with a classic fold-over clasp.