Features: Stainless Steel Case Silicon Strap Automatic Movement Caliber: 8L55 Sapphire Crystal Black Dial Analog Display Anti-Magnetic Accuracy: +15/-10 Sec/Day Luminous Hands And Markers Date Display Rotating Bezel Screw Down Crown Solid Case Back Buckle Clasp 300M Water Resistance Approximate Case Diameter: 44.8mm Approximate Case Thickness: 15.65mm