LED lightSelectable 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-second stopwatchMeasuring capacity: 5959Measuring modes: Elapsed time, split time, 1st-2nd place times Countdown timerMeasuring unit: 1 secondCountdown range: 60 minutesCountdown start time setting range: 1 to 60 minutes (1-minute increments) Daily 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)), 1 dial (worldtime hour and minute)Digital: Hour, minute, second, pm, month, date, day Accuracy:±30 seconds per month Approx. battery life: 2 years on SR726W × 2 Size of case : 48 × 44.3 × 15.5 mm Total weight : 45 g