Sapphire Crystal - glareproofed both sides (1.2mm thick) Case Length: 50.0 mm Case Width: 40.0 mm Case Thickness: 16.15 mm Caseback: Transparent Sapphire Crystal Exhibition Back, Glareproofed both sides Bezel Material: 18k White Gold Bezel Function: Fixed Water Resistance: 50m / 165ft ( suitable for