Casio Retro B640 — Unisex Look, Countdown Timer & LED Backlight

Rating: 3.5 out of 5.
Size★★★★
Weight★★★
Functions★★★★
Battery Years★★★
Price★★★
How did we compose this rating? Enjoy our calculations →

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About B640 in Short. 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.


General Information

Price$45  *average Amazon Price, we may earn commission from purchases
Year of First Release2012
Model RangeCasio Retro
Battery Type CR2016 (Casio Batteries)
Manual3294 (official)

B640 Model Range *may be updated

*Want to be the first to know about new Retro Updates? Here we store all recent Monthly Retro Updates →


Casio Retro B640 on the wrist!


Official B640 Specs / Features *for base version B640WCG-5

  • Case / bezel material: Resin
  • Adjustable Clasp
  • Stainless Steel Band
  • Resin Glass
  • Rose gold ion plated band
  • 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
  • Size of case : 38.9×35×9.9mm
  • Total weight : 49g

You ask, we answer…

What battery does B640 have?

3 years CR2016.

What type of glass does B640 have?

Resin glass.

What does Stopwatch in B640 do?

Measuring capacity: 59’59.99″
Measuring modes: Net time, split time, 1st-2nd place times
.


Not sure about Casio B640? There are more Vintage Watches from Casio!

Back to All Casio Retro Models →

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