Stopwatch1-second stopwatchMeasuring capacity: 29'59 (30 minutes)Measuring mode: Elapsed time TimerCountdown timerMeasuring unit: 1 secondCountdown range: 30 minutesCountdown start time setting range: 1 minute to 30 minutes (1-minute increments) Alarm/Hourly Time SignalDaily alarm LightLED light (Super Illuminator)Afterglow Light ColorLED: White CalendarFull auto-calendar (to year 2099) Energy Saving FeaturePower Saving (hands stop to save power when the watch is left in the dark) Battery Display/AlertLow battery alertRun time:5 months on rechargeable battery (operation period with normal use without exposure to light after charge)18 months on rechargeable battery (operation period when stored in total darkness with power save function on after full charge) AccuracyAccuracy: ±15 seconds per month (with no mobile link function) Other FeaturesRegular timekeeping:Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 2 dials (24-hour, day)Day indicatorDate display Smartphone Link FeatureMobile link (Wireless linking using Bluetooth) AppsCASIO WATCHESApp connectivity featureAuto time adjustmentEasy watch settingTimeandamp;amp; placePhone finder Date Bracelet Fixed Stopwatch1-second stopwatchMeasuring capacity: 29'59 (30 minutes)Measuring mode: Elapsed time TimerCountdown timerMeasuring unit: 1 secondCountdown range: 30 minutesCountdown start time setting range: 1 minute to 30 minutes (1-minute increments) Alarm/Hourly Time SignalDaily alarm LightLED light (Super Illuminator)Afterglow Light ColorLED: White CalendarFull auto-calendar (to year 2099) Energy Saving FeaturePower Saving (hands stop to save power when the watch is left in the dark) Battery Display/AlertLow battery alertRun time:5 months on rechargeable battery (operation period with normal use without exposure to light after charge)18 months on rechargeable battery (operation period when stored in total darkness with power save function on after full charge) AccuracyAccuracy: ±15 seconds per month (with no mobile link function) Other FeaturesRegular timekeeping:Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 2 dials (24-hour, day)Day indicatorDate display Smartphone Link FeatureMobile link (Wireless linking using Bluetooth) AppsCASIO WATCHESApp connectivity featureAuto time adjustmentEasy watch settingTimeandamp;amp; placePhone finder