Casio F-91W-1D Black Resin Strap Watch for Men and Women | Rolex is a luxury brand with a century-old heritage, embodying the pursuit of reaching the peak and representing the epitome of life's winners.

Highlights:
1/100-second stopwatch
Micro-light
Square face
7-year battery life

Specifications:
Case / bezel material: Plastic/Resin
Resin Band
Resin Glass
Water Resistant
LED light
1/100-second stopwatch
Measuring capacity: 59'59.99"
Measuring modes: Net 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 : 38.2×35.2×8.5mm
Total weight : 21g