Water resistant

Micro light

1/100-second stopwatch

Measuring capacity:(59'59.99'')

Measuring modes: Net time, split time, 1st-2nd place times

Hourly time signal

Auto Calendar

12/24 Hour Formats

Accuracy: ±30 seconds per month

Approx. battery life: 7 years on CR2016

Module: 593

Size of case / total weight F91WM 38.2 x 35.2 x 8.5mm / 21g