Casio 5255 Operation Manual

MO1111-EA
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 specify a distance value .................................................................................. E-16
To specify lap time or split time readings .......................................................... E-18
To perform elapsed time measurement .............................................................. E-19
To set up the stopwatch to take lap time readings ............................................ E-20
To perform a lap time measurement ................................................................... E-21
To set up the stopwatch to take split time readings .......................................... E-22
To perform a split time measurement ................................................................. E-23
To measure times with the stopwatch ................................................................ E-24
E-4
General Guide
Press C to change from mode to mode.
In any mode (except a setting mode), press B to illuminate the display.
E-6

Timekeeping

You can adjust the Home Time city date and time in the Timekeeping Mode.
Pressing D in the Timekeeping Mode will toggle lower display between the screens
shown below.
Home City Date
Day of the week
Date
E-8
Operation Guide 5255
Timekeeping Mode
Home City Time
Day of the week
D
Seconds PM indicator Hour : Minutes
Seconds
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.
Contents
General Guide ......................................................................................................... E-6
Timekeeping ............................................................................................................ E-8
Stopwatch .............................................................................................................. E-14
Countdown Timer .................................................................................................. E-25
World Time ............................................................................................................. E-29
Alarms .................................................................................................................... E-33
Illumination ............................................................................................................ E-38
Hand Home Position Correction .......................................................................... E-42
Reference .............................................................................................................. E-44
Specifications ....................................................................................................... E-48
To use the countdown timer ................................................................................ E-26
To configure countdown start time and auto-repeat settings .......................... E-27
To view the current time in another time zone ................................................... E-30
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-31
To swap your Home City and World Time City ................................................... E-32
To set an alarm time ............................................................................................. E-34
To turn an alarm on and off .................................................................................. E-36
To turn the Hourly Time Signal on and off .......................................................... E-37
To illuminate the display manually ...................................................................... E-38
To specify the illumination duration ................................................................... E-39
To turn the auto light switch on and off .............................................................. E-41
To adjust home positions ..................................................................................... E-42
Stopwatch Mode (page E-14)
C
Alarm Mode (page E-33)
C
To set the time and date
City code
PM indicator Hour : Minutes
Seconds
Countdown Timer Mode (page E-25)
C
World Time Mode (page E-29)
C
1. In the Timekeeping Mode, hold down A for about three
seconds until the city code flashes on the upper display.
This is the setting mode.
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-1
E-3
E-5
C
E-7
E-9