Quartz movement
1/100 second digital stopwatch; measuring modes: elapsed time, split time, 1st-2nd place times
Hourly time signal; calendar (pre-programmed until the year 2029); 12and 24 hour formats
Accuracy: +/-15 seconds per month; battery CR2016; approx. battery life: 2 years
Water resistant to 660 feet (200 M): suitable for recreational scuba diving