LED light (Super illuminator) , Selectable illumination duration (1.5 seconds or 3 seconds), afterglow , World time , 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping , 1/100-second stopwatch , Measuring capacity: 23:59''59.99'''' , Measuring modes: Elapsed time, split time, 1st-2nd place times , Others: target time alarm, direct timing start from the timekeeping mode , Countdown timer , Measuring unit: 1/10 second , Countdown range: 60 minutes , Countdown 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 timekeeping , Analog: 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 : 57.5×53.4×18.4mm , Total weight : 69g .