Casio Retro Digital Watch for Men - B640WB-1ADF

Basic Information
Case size (L× W× H)
38.9 × 35 × 9.4 mm
Weight
49 g
Case and bezel material
Resin
Band
Adjustable Clasp
Stainless Steel Band
Water resistance
50-meter water resistance
Power supply and battery life
Approx. battery life: 3 years on CR2016

Watch Features
Stopwatch
1/100-second stopwatch
Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit: 1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Other: Auto-repeat
Alarm/hourly time signal
Hourly time signal
Multi-function alarm
Flash alert feature
Flash alert
Flashes with buzzer that sounds for alarms, hourly time signal
Light
LED backlight
Afterglow
Light color
LED:Amber
Calendar
Full auto-calendar (to year 2039)
Accuracy
Accuracy: ±30 seconds per month
Other features
12/24-hour format
Regular timekeeping:
Hour, minute, second, pm, month, date, day