Bremont Men's Alt1 - WT/BL Analog Display Swiss Automatic Blue Watch Stainless steel case, Sapphire case back (screw-down), Blue leather strap, Blue dial, Luminescent hands and markers, Date, World Time Zone function, 24H UTC hand, Chronograph functions Swiss automatic movement, 42 hour power reserve, Sapphire crystal, Deployment buckle clasp, Water resistance up to 100 meters (10 ATM/330 feet), Case diameter 43mm, Lug width 22mm, Case thickness 16mm Swiss-automatic Movement Case Diameter: 43mm Water Resistant To 330 Feet