LENS MATERIAL: Corning® Gorilla® Glass DX or sapphire crystalBEZEL MATERIAL: Stainless steel, titanium or diamond-like carbon (DLC) coated titaniumCASE MATERIAL: Fibre-reinforced polymer with metal rear coverQUICKFIT™ WATCH BAND COMPATIBLE: Included (26 mm)STRAP MATERIAL: Silicone, leather, titanium..