Casio LF-30W-2A

Specification - 3572                 
1/100-second stopwatch
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
12/24-hour format
Accuracy: ±30 seconds per month
Approx. battery life
3 years on CR1616
Full auto-calendar (to year 2099)
Button operation tone on/off
Countdown timer
Measuring unit: 1/10 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Daily alarm
5 daily alarms (One-time or daily)
Hourly time signal
LED backlight
Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
Multi Time (4 different cities)
Regular timekeeping
Hour, minute, second, pm, month, date, day
World Time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
Size of case / total weight
LF-30W ...... 37.8 x 33.7 x 8.6 mm / 23 g