LED light (Super illuminator)Selectable illumination duration (1.5 seconds or 3 seconds), afterglow World time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping 1/100-second stopwatchMeasuring capacity: 23:5959.99-InchMeasuring modes: Elapsed time, split time, 1st-2nd place timesOthers: target time alarm, direct timing start from the timekeeping mode Countdown timerMeasuring unit: 1/10 secondCountdown range: 60 minutesCountdown start time setting range: 1 to 60 minutes (1-minute increments) 5 daily alarms (with 1 snooze alarm) Hourly time signal Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeepingAnalog: 2 hands (hour, minute (hand moves every 20 seconds))Digital: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month Approx. battery life: 5 years on CR2016 Size of case : 57.5 × 53.4 × 18.4 mm Total weight : 75g