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

★★★★

Size	★★★★
Weight	★★★
Functions	★★★★
Battery Years	★★★
Price	★★★

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Buy B640 on Amazon

Buy B640 on Amazon

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 Release	2012
Model Range	Casio Retro
Battery Type	CR2016 (Casio Batteries)
Manual	3294 (official)

B640 Model Range *may be updated

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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