Features:Resin CaseLeather Strap Treated With Flame-RetardantSolar PoweredMineral CrystalBlack DialDigital DisplayLow-Temperature ResistantAltimeterAuto Log DataTrek Log DataBarometerAtmospheric Pressure Tendency GraphDigital CompassBearing MemoryMagnetic Declination CorrectionThermometerWorld TimeSunrise, Sunset Time Display1/10-Second StopwatchCountdown Timer5 Daily AlarmsHourly Time SignalLED BacklightAfterglowButton Operation Tone On/OffPower SavingBattery Level Indicator12/24 Hours DisplayMonth, Day And Date DisplayBi Directional Rotating BezelScrewed Case BackBuckle Clasp100M Water ResistanceApproximate Case size (L Ã W Ã H): 54.7 Ã 51.7 Ã 15.1 mmApproximate Case Diameter: 51.70 mmApproximate Case Thickness: 15.10 mm