Features: Stainless Steel :Case Stainless Steel :Bracelet Movement :Eco-Drive Caliber : H820 Glass :Sapphire Crystal Dial Colour :Black Dial Features : Perpetual Calendar Power Reserve 26 World Cities Time Global Radio Controlled Dual Time Alarm Insufficient Charge Warning Function Overcharge Prevention Function AM/PM Display Luminous Hands And Markers Day And Date Display Deployment Clasp 100M Water Resistance Approximate Case Diameter: 43mm Approximate Case Thickness: 11mm