Bar Code: 4549526218743Smartphone Link/App Connectivity FeaturesSmartphone Link featureMobile link (Wireless linking using Bluetooth®)Apps: CASIO WATCHESWatch FeaturesWorld time39 time zones* (39 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping*May be updated when connected to a smartphone.Stopwatch1/1000-second stopwatchMeasuring capacity:00'00''000~59'59''999 (for the first 60 minutes)1:00'00''0~23:59'59''9 (after 60 minutes)Measuring unit:1/1000 second (for the first 60 minutes)1/10 second (after 60 minutes)Measuring modes: Elapsed time, lap timeRecorded data: Up to 200 records (measurement lap times)Other: Speed (0 to 400 units/hour)TimerCountdown timerMeasuring unit: 1/10 secondCountdown range: 24 hoursCountdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)Alarm/hourly time signalHourly time signal5 multi-function alarms (with daily, 1 time, schedule)LightDouble LED lightLED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)Light color: LED: WhiteCalendarFull auto-calendar (to year 2099)Mute featureButton operation tone on/offEnergy saving featurePower Saving (display goes blank and hands stop to save power when the watch is left in the dark)Battery display/alertBattery level indicatorRun timeApprox. battery operating time:6 months on rechargeable battery (operation period with normal use without exposure to light after charge)19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)AccuracyAccuracy: ±15 seconds per month (with no mobile link function)Other features12/24-hour formatHand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)Regular timekeeping:Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 1 dial (speed indicator)Digital: Hour, minute, second, pm, month, date, day