1/1000-second stopwatch
Measuring capacity: 99:59'59.999"
Measuring modes: Elapsed time, lap time, split time,
Other: Speed (0-498 unit / hour), Selection distance input (0.0-99.9),
Best lap indicator
12/24-hour format
Accuracy: ±30 seconds per month
Approx. battery life
3 Years on CR1220
Full auto-calendar (to year 2099)
Countdown timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours(1-minute increments and 1-hour increments)
Other: Auto-repeat
Daily alarms
5 independent daily alarms (4 one-time alarms and 1 snooze alarm)
Hourly time signal
LED light
Selectable illumination duration, afterglow
Regular timekeeping
Analog: 2 hands (Hour, minute (hand moves every 20 seconds))
Digital: Hour, minutes, seconds, pm, month, date, day
World Time
29 time zones (48 cities + coordinated universal time), daylight saving on/off,
Home city/World time city swapping
Size of case / total weight
EFA-131D...... 50.3 X 46.0 X 12.5 mm / 185g