Casio 5551 Operation Manual

MO1712-EB © 2017 CASIO COMPUTER CO., LTD.

About This Manual

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Contents
About This Manual .............................................................................. E-2
Things to check before using the watch ................................................ E-3
Mode Reference Guide ........................................................................ E-8
Timekeeping .......................................................................................E-16
To Swap Your Home City And World Time City ....................................E-17
Configuring Home City Settings ............................................................E-18
To configure Home City settings ......................................................E-18
To Change The Daylight Saving Time (Summer Time) Setting ..................E-20
Configuring Current Time And Date Settings ..........................................E-21
To change the current time and date settings ....................................E-21
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Using The Alarm .................................................................................E-34
To Enter The Alarm Mode ...............................................................E-34
To Set An Alarm Time .....................................................................E-35
To test the alarm ........................................................................E-36
To Turn An Alarm And The Hourly Time Signal On And Off........................E-37
To Stop The Alarm ........................................................................E-37
Illumination .......................................................................................E-38
To Illuminate The Display Manually ...................................................E-38
To Change The Illumination Duration ................................................E-38
To Enable Or Disable Auto Light.........................................................E-41
Adjusting Hand Positions .....................................................................E-43
To Adjust Hand Positions ...............................................................E-43
Button Operation Tone ........................................................................E-45
To Turn The Button Operation Tone On And Off .......................................E-45
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Mode Reference Guide

The mode you should select depends on what you want to do.
To do this:
• View the current time in the Home City
• View the current time in one of 48 cities (31 time zones)
around the globe
• View the current date in the Home City
• Configure Home City and daylight saving time (DST)
settings
• Configure time and date settings
• Configure World Time City and daylight saving time
(DST) settings
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Operation Guide 5551
• 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.
• Button operations are indicated using the letters shown
in the illustration.
• Note that the product illustrations in this manual are
intended for reference only, and so the actual product
may appear somewhat different than depicted by an
illustration.
Enter this mode:
All Modes
Timekeeping Mode
World Time Mode
Congratulations upon your selection of this CASIO watch.

Things to check before using the watch

1. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under "To configure Home City settings" (page E-18) to configure your
Home City and daylight saving time settings.
Important!
• Proper World Time Mode data depend on correct Home City, time, and date
settings in the Timekeeping Mode. Make sure you configure these settings
correctly.
2. Set the current time.
• See "Configuring Current Time and Date Settings" (page E-21).
The watch is now ready for use.
Checking The Current Time In A Different Time Zone .................................E-25
To Enter The World Time Mode ......................................................E-26
To View The Time In Another Time Zone .............................................E-26
To Specify Standard Time Or Daylight Saving Time (Dst) For A City ............E-27
Using The Stopwatch ...........................................................................E-28
To Enter The Stopwatch Mode .........................................................E-28
To Perform An Elapsed Time Operation .............................................E-29
To Pause At A Split Time ..................................................................E-29
To Measure Two Finishes ...............................................................E-29
Countdown Timer.................................................................................E-31
To Enter The Countdown Timer Mode ................................................E-31
To Configure The Countdown Timer ...................................................E-32
To Perform A Countdown Timer Operation ..........................................E-33
To stop the alarm ........................................................................E-33
Troubleshooting .................................................................................E-46
Main Indicators ....................................................................................E-47
Specifications ....................................................................................E-48
To do this:
• Use the stopwatch to measure elapsed time
• Use the countdown timer
See:
• Set an alarm time
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ENGLISH
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Enter this mode: See:
Stopwatch Mode E-28
Countdown Timer Mode E-31
Alarm Mode E-34
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