"Water Resistant, EL Backlight, Daily Alarm 1/100 second digital stopwatch Measuring capacity: 23'59.99"" Measuring modes: Net time, split time, 1st-2nd place times, Hourly Time Signal, Auto Calendar Accuracy: +/-30 seconds per month, Battery CR2016, Approx. battery life: 7 years Module 1275 Size of case / total weight: 37.5 x 33.5 x 9.5mm / 58g"
"Water Resistant, EL Backlight, Daily Alarm 1/100 second digital stopwatch Measuring capacity: 23'59.99"" Measuring modes: Net time, split time, 1st-2nd place times, Hourly Time Signal, Auto Calendar Accuracy: +/-30 seconds per month, Battery CR2016, Approx. battery life: 7 years Module 1275 Size of case / total weight: 37.5 x 33.5 x 9.5mm / 58g"