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.

• 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 backlight

• Light color

  LED:Amber

• Calendar

  Auto-calendar (set at 28 days for February)

• Accuracy

  Accuracy: ±30 seconds per month

• Other features

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