Case / bezel material: ResinResin BandResin Glass100-meter water resistanceLED light Selectable illumination duration (1.5 seconds or 3seconds), afterglowSolar poweredWorld time 31 time zones (48 cities + coordinated universal time), daylight saving on/off1/100-second stopwatch Measuring capacity: 99:59'59.99'' Measuring modes: Elapsed time, lap time, split time Memory capacity: Up to 120 records (used by lap/ split time records and log title screens) Others: lap number (from 001 to 999); Best lap time screen2 countdown timers Can be used during interval training that alternates between two different paces. Measuring unit: 1 second Input range: 00'05" to 99'55" (1-minute increments and 5-second increments) Other: Number of repeats settable from 1 to 105 daily alarms (with 1 snooze alarm)Hourly time signalBattery level indicatorPower Saving (display goes blank to save power when the watch is left in the dark)Full auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeeping: Hour, minute, second, pm, year, month, date, dayAccuracy: ±30 seconds per monthApprox. battery operating time: 13 months on rechargeable battery (operation period with normal use without exposure to light after charge) 38 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) 
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