• 1/100-second stopwatch
• 50-meter water resistance
• Popular retro design
• LED Backlight
• Black ion plated band
Casio Vintage Edgy watch B640WB-1BEF
Case size (L× W× H)
38.9 × 35 × 9.4 mm
Weight
49 g
Case and bezel material
Case / 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
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
