Casio B640WB-4BEF manual

Casio B640WB-4BEF
(2)
  • Number of pages: 3
  • Filetype: PDF

Operation Guide 3294

E-9
3. When the setting you want to change is fl ashing, press D to change it as
described below.
To change this setting Perform this button operation
Seconds
Press D to reset to 00.
Hour, Minutes, Year, Month, Day
Press D to increase the setting.
Pressing x D while the seconds are in the range of 30 to 59 resets them to 00 and
adds 1 to the minutes. In the range of 00 to 29, the minutes are unchanged.
To toggle between the 12-hour and 24-hour formats, press
x B
B
while some
digits are fl ashing.
Press 4. A to exit the setting screen.
x The day of the week is automatically displayed in accordance with the date
(year, month, and day) settings.
x The year can be set in the range of 2000 to 2099.
E-8

Timekeeping

Use the Timekeeping Mode to set and view the current
time and date.
To set the time and date
In the Timekeeping Mode, press 1. A. The seconds digits
will start to fl ash, which indicates the setting screen.
Press 2. C to move the fl ashing in the sequence shown
below to select other settings.
Seconds Hour Minutes
YearMonthDay
CC
CC
CC
Day of week
Month
Day
PM indicator
Hour
Minutes
Seconds
E-7
After you perform an operation in any mode, pressing x C returns to the
Timekeeping Mode.
Press
x B in any mode to illuminate the display for about two seconds.
Countdown Timer Mode Stopwatch Mode
C
C
E-6

General Guide

Press x C to change from mode to mode.
Timekeeping Mode Alarm Mode
C C
E-5E-4
E-18 Countdown Timer
E-19 To set the countdown start time
E-20 To use the countdown timer
E-21 To turn auto-repeat on and off
E-22 Stopwatch
E-23 To measure times with the stopwatch
E-24 Reference
E-25 Specifi cations
E-3

Contents

E-2 About This Manual
E-6 General Guide
E-8 Timekeeping
E-8 To set the time and date
E-11 Backlight
E-11 To switch the backlight function on and off
E-13 Alarm
E-15 To set the alarm time
E-16 To stop the alarm
E-17 To switch an alarm and Hourly Time Signal on and off
E-2

About This Manual

x Depending on the model of your watch, display text
appears either as dark fi gures on a light background or
light fi gures on a dark background. All sample displays
in this manual are shown using dark fi gures on a light
background.
Note that the product illustrations in this manual are
x
intended for reference only, and so the actual product
may appear somewhat different than depicted by an
illustration.
Button operations are indicated using the letters shown
x
in the illustration.
x Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
E-1

ENGLISH

Congratulations upon your selection of this CASIO watch.

MA1110-EA

Casio B640WB-4BEF

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Casio B640WB-4BEF specifications

General
Brand Casio
Model B640WB-4BEF
Product Watch
Language English
Filetype PDF
Technical details
Mechanism type Electronic
Watch dial type -
Waterproof
Water resistant depth 50 m
Shockproof
Chronograph
Stopwatch
Timer 1/1s - 24h
Alarm function
Calendar
LED backlight
Accuracy 30 sec/month
Snooze function
Clock mode 12h/24h
Watch type Bracelet watch
Design
Watch case material Resin
Housing colour Black
Band material Stainless steel
Band main colour Black
Watch glass type -
Case shape -
Watch dial main colour Black
Watch marker style Arabic numerals
Product design Sport
Power
Battery type CR2016
Battery life 3 year(s)
Number of batteries supported 1
Weight & dimensions
Width 35 mm
Depth 38.9 mm
Height 9.4 mm
Weight 44 g
Other features
Dimensions (WxDxH) 35 x 38.9 x 9.4 mm
Product colour Black
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