Straight from the Casio Vintage Collection comes a timepiece that never goes out of style. The B640 combines style with features Casio is known for such as an EL backlight and a 1/100th second stopwatch. This timepiece is the perfect complement to any outfit.
- Case / bezel material: Resin
- Stainless Steel Band
- Adjustable Clasp
- Black ion plated band
- Black IP
- Resin Glass
- 50-meter Water Resistant
- Water Resistant
- LED backlight with Afterglow
- 1/100-second Stopwatch
Measuring capacity: 1/100 second
Measuring capacity: 0'00":00 - 59'59.99" (for the first 60 minutes)
1:00'00-23:59.99 (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 time - Multi-function alarm
- Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting rage: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) - Other: Auto-repeat
- Flash alert
Flashes with buzzer that sounds for alarms, hourly time signals, countdown timer time up alarm. - Hourly time signal
- Full auto-calendar (to year 2039)
12/24-hour format
Accuracy: +/-30 seconds per month - Approx. battery life: 3 years on CR2016
- Module: 3294
- Size of case / Weight: 38.9 X 35.0 X 9.4 mm / 49 g