F-91WG-9QDF

Case / bezel material: Resin
Resin Band
Resin Glass
Water Resistant
LED light
1/100-second stopwatch
Measuring capacity: 59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Daily alarm
Hourly time signal
Auto-calendar (set at 28 days for February)
12/24-hour format
Regular time keeping: Hour, minute, second, pm, date, day
Accuracy: ±30 seconds per month
Approx. battery life: 7 years on CR2016

Size of case / Total weight
Size of case : 38.2×33.2×8.5mm                            
Total weight : 21g