Features: Stainless Steel Case Resin Strap Quartz Movement Caliber: 5618 Sapphire Crystal Black Dial Analog Digital Display World Time Double LED Light EDIFICE Connected Flight Mode Mobile Link (Automatic Wireless Linking Using Bluetooth) Hand Shift Feature Button Operation Tone On/Off 1/1000 Second Stopwatch Countdown Timer 5 Daily Alarms Hourly Time Signal Regular Timekeeping Date/Month Display Swapping Day Display (Days Of The Week Selectable In Six Languages) Full Auto Calendar 12/24 Hours Display Luminous Hands And Markers Day, Date And Month Display Solid Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 48mm Approximate Case Thickness: 12mm Approximate Lug Width: 20mm nbsp;