At A Glance100M Active Dial combination models with full-face digital displays and analog timekeeping for a wealth of data at a glance, including Dual Time, 60 Lap Memory, and more.Full LCD Ana-Digi100M Water ResistantEL Backlight with AfterglowDual Time2 Multi-function Alarms and 1 Multi-function

At A Glance100M Active Dial combination models with full-face digital displays and analog timekeeping for a wealth of data at a glance, including Dual Time, 60 Lap Memory, and more.Full LCD Ana-Digi100M Water ResistantEL Backlight with AfterglowDual Time2 Multi-function Alarms and 1 Multi-function snooze alarmCountdown TimerMeasuring unit: 1 secondCountdown range: 1 minute to 24 hoursAuto-repeat function1/100 second digital stopwatchMeasuring capacity: 99:59’59.99”Measuring modes: Elapsed time, lap time, split time, 1st-2nd place times60 Lap MemoryHourly Time SignalButton Operation Tone On/OffAuto Calendar (pre-programmed until the year 2099)12/24 Hour FormatsAccuracy: /-30 seconds per monthBattery SR927W x 2Approx. battery life: 3 yearsModule 4396Size of case / total weightAQ164W 48.4 x 43.5 x 14.8mm / 44gAQ164WD 48.4 x 43.5 x 14.8mm / 104g