Casio 5259 Operation Guide

MO1208-EA

© 2012 CASIO COMPUTER CO., LTD.

Operation Guide 5259

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.

About This Manual

• Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.

E-1

• Button operations are indicated using the letters shown in the illustration.

• 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-2

Procedure Lookup

The following is a handy reference list of all the operational procedures contained in
this manual.

To set the time and date ......................................................................................... E-9

To change the Daylight Saving Time (summer time) setting ............................ E-12

To use the countdown timer ................................................................................ E-18

To configure countdown start time settings ...................................................... E-19

To view the current time in another time zone ...................................................E-21

To toggle a city code time between Standard Time and

Daylight Saving Time ...................................................................................... E-22

To swap your Home City and World Time City ................................................... E-23

To set an alarm time ............................................................................................. E-25

E-4

General Guide

• Press C to change from mode to mode.

• To return to the Timekeeping Mode from any other mode, hold down C for about

three seconds.

• In any mode (except a setting mode), press B to illuminate the display.

Timekeeping Mode

C

Contents

General Guide ......................................................................................................... E-6

Timekeeping ............................................................................................................ E-8

Stopwatch ..............................................................................................................E-14

Countdown Timer .................................................................................................. E-17

World Time ............................................................................................................. E-20

Alarms ....................................................................................................................E-24

Illumination ............................................................................................................E-29

Hand Home Position Correction .......................................................................... E-33

Reference .............................................................................................................. E-35

Specifications ....................................................................................................... E-40

E-3

To test the alarm ................................................................................................... E-26

To turn an alarm on and off.................................................................................. E-27

To turn the Hourly Time Signal on and off ..........................................................E-28

To illuminate the display manually ...................................................................... E-29

To specify the illumination duration ................................................................... E-30

To turn the auto light switch on and off.............................................................. E-32

To adjust home positions..................................................................................... E-33

To turn the button operation tone on and off .....................................................E-36

E-5

Stopwatch Mode (page E-14)

▲

Alarm Mode (page E-24)

Countdown Timer Mode (page E-17)

C

▲

World Time Mode (page E-20)

C

▲

E-6

C

Timekeeping

You can adjust the Home Time city date and time in the Timekeeping Mode.

• Pressing A in the Timekeeping Mode will toggle lower display between the screens

shown below.

Home City Date Home City Time

Day of the week

A

▲

Date Seconds

E-8

▲

PM indicator

Day of the week

Seconds

Hour : Minutes

To set the time and date

City code

▲

C

1. In the Timekeeping Mode, hold down A for about two

seconds until “SET” appears on the display. This is the
setting mode.

• Note that keeping A depressed too long (for about

five seconds) will cause a different type of setting
mode to be entered (page E-33).

2. Use D and B to select the city code you want.

• Make sure you select your Home City code before
changing any other setting.

• For full information on city codes, see the “City Code
Table” at the back of this manual.

▲

E-7

E-9

Operation Guide 5259

3. Press C to change the flashing screen content in the sequence shown below to

select the other settings.

City

Code

C C

Illumination

Duration

4. When the timekeeping setting you want to change is flashing, use D or B to

change it as described below.

Screen:

E-10

5. Press A to exit the setting mode.

• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.

To do this: Do this:

Change the city code

Toggle the DST setting between
Daylight Saving Time (
Standard Time (

To change the Daylight Saving Time (summer time) setting

DST indicator

E-12

12/24-Hour

DST

Format

Button

Operation Tone

CCCC

1. In the Timekeeping Mode, hold down A for about two

seconds until “SET” appears on the display.

• Note that keeping A depressed too long (for about

five seconds) will cause a different type of setting
mode to be entered (page E-33).

2. Press C. This will display the DST setting screen.

Seconds

Day

) and

).

CCCCC

Hour Minutes

Month Year

Use D (east) and B
(west).

Press D.

Stopwatch

You can use the stopwatch to measure elapsed time and
split times.

• The digital display range of the stopwatch is 999 hours,
59 minutes, 59.99 seconds. The stopwatch continues to
run until you stop it. If it reaches the above limit, it will
restart the time measurement from zero.

• The stopwatch operation continues even if you exit the
Stopwatch Mode.

• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-7).

Screen: To do this: Do this:

Toggle between 12-hour (
24-hour ( ) timekeeping

Reset the seconds to

Change the hour and minutes

) and

Press D.

Press D.

Use D (+) and B (–).

Change the year, month, or day

Toggle the button operation tone
between

Toggle the display illumination
duration between 1.5 seconds (
and three seconds (

(on) and (off)

)

)

Press D.

Press D.

E-11

3. Use D to toggle the DST setting on and off.

Split

D

(Split time
displayed.)

Split
cancel

(Measured time
displayed.)

Display
time resetStop

E-13

DST off ( ) DST on ( )

• The default DST setting is OFF ( ).

4. When the setting you want is selected, press A to exit the setting mode.

• The DST indicator appears to indicate that Daylight Saving Time is turned on.

12-hour and 24-hour timekeeping

• With the 12-hour format, the PM indicator (P) appears on the lower display for times
in the range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.

• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
the PM indicator (P).

• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.

Elapsed Time Measurement

In the Stopwatch Mode, press D to start and stop elapsed time measurement.

• Pressing A while elapsed time measurement is in progress will display the current
split time.

Start

DAADA

(Measured time
displayed.)

(Stopped) (Stopped)(Measurement)

E-14

Indicator disk

Elapsed time seconds

• First 1 min ute only

Measurement status

STOP: Stopped
RUN: Measuring

• Except during display of
a split time.

SPL: Split time displayed

• Pressing D without resetting the displayed time will restart elapsed time

measurement from where it was last stopped (cumulative elapsed time
measurement).

• An ongoing elapsed time measurement operation continues even if you exit the
Stopwatch Mode. In this case, the indicator disk indicates the current minutes count.

E-16

To use the countdown timer

Press D while in the Countdown Timer Mode to start the countdown timer.

• When the end of the countdown is reached, the alarm will sound for 10 seconds or
until you stop it by pressing any button.

• The countdown time is reset to its starting value automatically after the alarm stops.

• Press D while a countdown operation is in progress to pause it.

Press D again to resume the countdown.

• To stop a countdown timer operation completely, first pause it (by pressing D), and
then press A. This returns the countdown time to its starting value.

E-18

Measured time or split time

Hours

• Alternates with “SPL” during
split time display.

Minutes, seconds,
1/100 seconds

Countdown Timer

You can set the countdown timer start time within a range
of one minute to 24 hours. An alarm sounds when the
countdown reaches zero.

• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C (page E-7).

Seconds

Start time
(Hours : Minutes)

To configure countdown start time settings

Start time
(Hours : Minutes)

1. While the countdown start time is on the display in the

Countdown Timer Mode, hold down A for about two
seconds until the hour setting of the countdown start
time starts to flash. This is the setting mode.

• Holding down A will initially cause “Hold” to appear
on the screen. Keep A depressed until “Hold”
disappears.

• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” (page
E-18) to display it.

2. Press C to move the flashing in the sequence shown

below, and select the setting you want to change.

Start Time

3. Press A to exit the setting mode.

(Hours)

C

Start Time

(Minutes)

E-15

E-17

C

E-19