Casio 5351 User's Manual

Casio Watches User's Manual - 5351.
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Operation Guide 5351

MA1305-EB

© 2013 CASIO COMPUTER CO., LTD.

E-1

ENGLISH

Congratulations upon your selection of this CASIO watch.
To ensure that this watch provides you with the years of service for which it is 

designed, carefully read and follow the instructions in this manual, especially the 

information under “Operating Precautions” and “User Maintenance”.

Be sure to keep all user documentation handy for future reference.

 

•  Note that the product il ustrations in this manual are intended for reference only, and so 

the actual product may appear somewhat different than depicted by an illustration.

This watch does not have a city code that corresponds to the UTC offset of –3.5 

hours. Because of this, the radio-controlled atomic timekeeping function will not 

display the correct time for Newfoundland, Canada.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any 

damage or loss suffered by you or any third party arising through the use of this 

product or its malfunction.

E-2

About This Manual

Operations are performed using the watch’s crown, and 

the three buttons indicated by the letters A, B and C in 

this manual.

Hands and Indicators

 Hour Hand

 Second Hand

 Minute Hand

 Upper Dial Hand:  Indicates a time, in 24-hour format, 

depending on the current mode.

 Lower Dial Hand:  Points to the day of the week.

 Day Indicator

This User’s Guide uses numbers shown above to identify 

watch hands and indicator.

+

6

*

@

>

B

E-3

 Crown Operations

The crown of this watch is a screw in lock crown. Before using 

the crown, you must fi rst rotate it towards you to loosen it.

Important!

 

•  To maintain water resistance and avoid impact damage 

to the crown, be sure to screw it back in when you are not 

using it.

 

•  When pulling out the crown, avoid using undue force, 

which creates the risk of personal injury to your fi ngers and 

fi ngernails, and of watch malfunction.

Crown

Loosen

E-4

The illustrations below show the different crown operations.
Pull out

Rotate

Push in

 

 

 

High-speed Movement
When rotating the crown to move the hands of the watch, you can use the operations 

described below to move the hands at high speed. There are two high-speed hand 

movement speeds. High-speed 2 is the fastest.

High-speed 1

With the crown pulled out, rotate it rapidly away from you 

three times.

E-5

High-speed 2

After starting the High-speed 1 operation, rotate the crown 

rapidly away from you three more times.

High-speed Cancel

Rotate the crown towards you or press any button.

Note

 

•  If you do not perform any operation for more than two minutes after pulling out the 

crown, crown operations will become disabled automatically. If this happens, push 

the crown back in and then pull it out again to re-enable crown operations.

 

•  You can use high-speed hand movement when confi guring time settings in the 

Timekeeping Mode or Alarm Mode.

E-6

 

•  High-speed hand movement is forward only. There is no high-speed backward 

hand movement.

 

•  Button operations become disabled after you perform a crown operation. If this 

happens, rotate the crown slightly. This should restore button operations.

E-7

Things to check before using the watch

1.  Hold down C at least two seconds to enter the Timekeeping Mode, and 

then observe the movement of the x Second Hand.

Is the x Second Hand moving smoothly at one-second intervals?

Is the x Second Hand moving at 

two-second intervals or is it stopped 

completely? 

Go to step 2.

The watch is charged. For details 

about charging, see “Charging 

the Watch” (page E-13).

Power is low. Charge the watch by 

placing it in a location where it is 

exposed to light. For details, see 

“Charging the Watch” (page E-13).

NO

YES

YES

NEXT

E-8

2.  Check the Home City.

Use the procedure under “To confi gure Home City settings” (page E-37) to confi gure your 

Home City.
Important!

 

•  Proper time calibration signal reception depends on correct Home City, time, and 

day settings in the Timekeeping Mode. Make sure you confi gure these settings 

correctly.

3.  Set the current time.

 

•  To set the time using a time calibration signal

See “To get ready for a receive operation” (page E-26).

 

•  To set the time manually

See “Confi guring Current Time and Day Settings Manually” (page E-42).

The watch is now ready for use.

 

•  For details about the watch’s radio controlled timekeeping feature, see “Radio 

Controlled Atomic Timekeeping” (page E-21).

E-9

Contents

E-2 

About This Manual

E-3 

Crown Operations

E-7 

Things to check before using the watch

E-13  Charging the Watch

E-15 

To check the current power level

E-20 

To recover from the sleep state

E-21  Radio Controlled Atomic Timekeeping

E-26 

To get ready for a receive operation

E-29 

To perform manual receive

E-30 

To check the result of the latest receive operation

E-31 

To turn auto receive on and off

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