Features: Stainless Steel Case Leather Strap Eco-Drive Movement Caliber: U680 Sapphire Crystal Blue Dial Analog Digital Display Perpetual Calendar 2 Alarms Power Reserve Indicator Luminous Hands And Markers 12/24 Hours Display Rotating Bezel Screw Down Crown Solid Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 46mm Approximate Case Thickness: 15mm