Casio B640WB-1BEF

Digital watch, 38.90 mm

LED light
The display of the watch is illuminated by a light-emitting diode at the push of a button so that everything can be seen even in dark surroundings.

Display Flasher
An LED flashes when an alarm,
countdown time or hour signal is reached.

Stop function - 1/100 sec. - 24 hrs.
For athletes and everyone who wants to know exactly: Elapsed time, split time and end time are measured with an accuracy of hundredths of a second. The measuring capacity of the watch is up to 24 hours.

Timer - 1/1 sec. - 24 hours (with automatic repeat function)
For all who want to know exactly: The countdown timer helps to remember special or recurring events by emitting an acoustic signal at the set time and then automatically counts back from the set time. The time can be set every second and up to 24 hours in advance. This function is particularly useful for daily medication or interval training.

multifunction alarm
No matter how the appointments are distributed, this watch has the right alarm. A total of four variants are possible: 1. daily alarm, sounds daily at the same time, 2. date alarm, e.g. for birthdays, 3. monthly alarm, sounds monthly on the same day at the same time, 4. alarm for each day of a certain month.

Automatic calendar
Once set, the automatic calendar always displays the correct date.

12/24-hour format
The time display can be set to either 12-hour or 24-hour format. In 12-hour mode, a "p" appears in the display for the second half of the day, i.e. 12 noon until 11.59 pm.

stainless steel bracelet
Hard, durable and elegant: the stainless steel bracelet is a classic for watches.

Adjustable lock
The closure can be easily and individually adjusted for optimum wearing comfort.

3 years - 1 battery
The battery supplies the watch with the necessary energy for approx. 3 years.

Water resistance classification (5 bar)
Showering and bathing is possible with this watch - it is tested for water resistance up to 5 bar according to ISO 22810.

Key specifications

Watch type
Digital watch
up to 50 m
Strap fastener
Folding clasp
Item number