Approx. 5 years on CR2032 (includes an average of 30 presses of button per day.)
Stopwatch
1/1000-second stopwatch
Measuring capacity:
Total elapsed time display: 9:59'59.999''
Lap time display: 59'59.999''
Split time display: 9:59'59.999''
Measuring modes: Elapsed time, lap time, split time, 1st-100th place time, lap counter (up to 99)
Memory capacity: 2 sets of 100 records each
Accuracy (stopwatch): 99.9988%
Calendar
Full auto-calendar (to year 2099)
Accuracy
Accuracy (time): ±30 seconds per month
Other features
12/24-hour format
Button operation tone on/off
Regular timekeeping:
Hour, minute, second, am/pm, year, month, date, day
Time Display
*The color tone of the listed products may differ from the actual product in some cases.