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- Case / bezel material: Resin
- Stainless Steel Band
- Adjustable Clasp
- Resin Glass
- Partial ion plated
- 50-meter water resistance
 - LED Backlight
 Afterglow
- Flash alert
 Flashes with buzzer that sounds for alarms, hourly time signal
- 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
- 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
- Multi-function alarm
- Hourly time signal
- Full auto-calendar (to year 2039)
- 12/24-hour format
- Regular timekeeping: Hour, minute, second, pm, month, date, day
- Accuracy: ±30 seconds per month
- Approx. battery life: 3 years on CR2016
 
 
          Casio Vintage B640WC-5ADF
Specifications
Size of case / Total weight
- Size of case : 38.9×35×9.4mm
- Total weight : 49g