Casio Stop Watch HS-3V

Features
This model is configured to fit comfortably in the palm of the hand, and comes with a neck strap. Stopwatch functions include 10-hour maximum, 1/100-second timing, lap time, and split times.

1/100-second stopwatch
Measuring capacity: 9:59’59.999’’
Measuring modes: Elapsed time, lap time, split time, 1st-2nd place times
Accuracy (stopwatch): 99.997685%
Approx. 3 years on CR2025 (includes an average of 20 presses of button per day.)
Size of case:62×64×17mm
Total weight: 40 g