Casio B640WD-1AVEF

Functions

LED light 

A light-emitting diode is used to illuminate the dial.

Display flashing 

A light-emitting diode flashes whenever an alarm, countdown or time signal sounds.

Stopwatch - 1/100 sec - 24 hours 

Elapsed time tracking. The fraction indicates the unit of measurement while the number indicates the maximum measurement time.

Timer - 1/1 sec. - 24 hours (with automatic repeat) 

For anyone who loves precision: countdown timers help you remember particular or repeating events by beeping at the set time - then automatically counting again from the set time. The time can be set in seconds and up to 24 hours in advance – especially practical for daily medication intake or interval training.

Multifunctional alarm clock, time signal 

Alarm for a set time or date and time. The value indicates how many alarms there are. The time signal sounds every hour.

Automatic calendar 

Once set, the automatic calendar always displays the exact date.

12/24 hour format 

The time can be displayed in 12 or 24 hours

Resin case

Stainless steel bracelet 

Durable and elegant: the stainless steel bracelet is a classic for watches. 

Adjustable closure 

The closure can be adjusted very easily according to your needs to make it more comfortable.

3 years - 1 battery 

The battery powers the clock for approx. 3 years.

Waterproof classification (5 bar) 

It is possible to shower and bathe with this watch on your wrist: it is approved for water resistance up to 5 bar/50 metres. The meter specification refers not to a diving depth but to the atmospheric pressure that was used as part of the waterproof approval. (ISO 22810) 

Accuracy

+/- 30 sec seconds per month

Stack type

CR2016

Dimensions

approx. 38.9mm x 35.0mm x 9.4mm (H x W x D)

Weight

approx. 49.0 g