EFR-550D-1AVUDF

World time
29 time zones (29 cities + coordinated universal time)
1/20-second stopwatch
Measuring capacity: 23:59'59.95''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Daily alarm (alarm time is for the city whose time is indicated by dial at 12 o’clock)
Date display
Regular timekeeping
Analog: 3 hands (hour, minute, second),
2 dials (world time hour and minute, day)
Accuracy: ±20 seconds per month
Approx. battery life: 2 years on SR927W
Size of case : 52.7×49.2×12mm
Total weight : 187g