Casio Lightweight Digital Watch - F91WS7EF

Casio F91WS7EF is a classic, lightweight digital watch from Casio’s Collection series with a simple, everyday-wear design. It features an easy-to-read LCD display with an LED backlight for visibility in the dark, a 1/100-second stopwatch that measures up to 60 minutes, and a daily alarm with an hourly time signal. It also includes an automatic calendar showing the date, day, and month, plus a choice of 12- or 24-hour time formats. The watch is water resistant (splash/rain resistant), has a long battery life of about 7 years, and comes in a durable resin case and strap.

Basic Information
Case size : 38.2 × 35.2 × 8.5 mm
Weight : 21 g
Case and bezel material : Resin
Band : Resin Band
Water resistance : Water Resistant
Power supply and battery life : Approx. battery life: 7 years on CR2016
Glass : Resin Glass
Compatible band size : 145 to 200 mm

Watch Features
Stopwatch : 1/100-second stopwatch, Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Alarm/hourly time signal : Daily alarm, Hourly time signal
Light : LED light
Light color : LED:Green
Calendar : Auto-calendar (set at 28 days for February)
Accuracy : ±30 seconds per month

Other features
12/24-hour format
Regular timekeeping:
Hour, minute, second, pm, date, day