
MO1106-EA
Operation Guide 3271
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.
• Be sure to keep all user documentation handy for future reference.
Keep the watch exposed to bright light
Bright Light
l
l
l
l
l
l
l
Solar cell
The electricity generated by the solar cell of the watch is
l
stored by a rechargeable battery. Leaving or using the
l
l
l
watch where it is not exposed to light causes the battery
to run down. Make sure the watch is exposed to light as
much as possible.
• When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is covered only partially.
E-1
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light. Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
E-2
About This Manual
• 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-4
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
Bright Light
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
Electrical
energy
All
functions
enabled
Dis-
charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
To exit the demo mode ......................................................................................... E-10
To set the time and date ....................................................................................... E-12
To change the Daylight Saving Time (summer time) setting ............................ E-16
To measure times with the stopwatch ................................................................ E-18
To position the lap time and split time on the display ...................................... E-19
To recall stopwatch records ................................................................................ E-21
To delete a log ....................................................................................................... E-23
To delete all logs ................................................................................................... E-24
To configure the countdown timer ...................................................................... E-26
To use the countdown timer ................................................................................ E-28
E-6
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately 8 hours exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” (page E-39) for important information you
need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
• See “Power Saving Function” (page E-51) for more information.
E-3
Contents
General Guide ......................................................................................................... E-8
Timekeeping .......................................................................................................... E-11
Stopwatch .............................................................................................................. E-17
Recall Mode ........................................................................................................... E-21
Countdown Timer .................................................................................................. E-25
World Time ............................................................................................................. E-29
Alarms ....................................................................................................................E-32
Illumination ............................................................................................................ E-37
Power Supply ........................................................................................................ E-39
Reference .............................................................................................................. E-47
Specifications ....................................................................................................... E-55
E-5
To view the time in another city........................................................................... E-30
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-31
To set an alarm time ............................................................................................. E-33
To test the alarm ................................................................................................... E-34
To turn an alarm on and off.................................................................................. E-35
To turn the Hourly Time Signal on and off ..........................................................E-36
To illuminate the display manually ...................................................................... E-37
To specify the illumination duration ................................................................... E-38
To turn the button operation tone on and off .....................................................E-50
To recover from the sleep state ........................................................................... E-52
To turn Power Saving on and off ......................................................................... E-52
E-7
General Guide
• Press C to change from mode to mode.
• In any mode, press L to illuminate the display.
Timekeeping Mode
C
▲
E-8
Stopwatch Mode
▲
C
Recall Mode
CC
▲
Alarm Mode
Countdown Timer Mode
▲
▲
C
World Time Mode
▲
C
E-9

Operation Guide 3271
Demo Mode
In the Timekeeping Mode, holding down C for about three seconds will enter the
demo mode. In the demo mode, the screen cycles through the normal timekeeping,
stopwatch, and World Time screens in five-second intervals.
To exit the demo mode
Press any button.
E-10
To set the time and date
3. Press C to move the flashing in the sequence shown below to select the other
settings.
City Code
E-12
Screen: To do this: Do this:
/
5. Press A to exit the setting screen.
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
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.
12/24-Hour
DST
Illumination
Duration
Format
Seconds
Button
Operation Tone
DayPower Saving
Change the year, month, or day
Toggle the button operation tone between
(on) and (off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on (
off ( )
) and
Minutes
Hour
Month
Year
Use D (+) and B (–).
Press D.
Press D.
Press D.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of which represents the time
zone where that city is located. When setting the time, it is important that you first
select the correct city code for your Home City (the city where you normally use the
watch). If your location is not included in the preset city codes, select the preset city
code that is in the same time zone as your location.
•
Note that all of the times for the World Time Mode city codes (page E-29) are displayed
in accordance with the time and date settings you configure in the Timekeeping Mode.
• The following steps explain how to configure timekeeping settings only.
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Screen:
12-hour and 24-hour timekeeping
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits 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
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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.
Day of week
PM indicator
To do this: Do this:
Change the city code
Toggle between Daylight Saving Time (
and Standard Time ( )
Toggle between 12-hour (
hour ( ) timekeeping
Reset the seconds to
Hour : Minutes
Seconds
Year – Month – Day
) and 24-
)
Change the hour and minutes
Use D (east) and B
(west).
Press D.
Press D.
Press D.
Use D (+) and B (–).
E-11
E-13
E-14
To change the Daylight Saving Time (summer time) setting
DST indicator
E-16
To measure times with the stopwatch
Lap/Split indicator
Lap time
Split time
Note
• Pressing B to perform a lap/split time operation freezes the lap/split time at that
point on the display for about eight seconds. After that, the display returns to normal
stopwatch time measurement.
• During a stopwatch time measurement operation, the current lap/split number is
shown at the top of the display, and the lap time and split time are shown in the
middle and at the bottom. You can change the positions of the lap time and split time
by pressing A while a stopwatch operation is in progress or stopped. For details,
refer to “To position the lap time and split time on the display” (page E-19).
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1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C and the DST setting screen appears.
3. Use D to cycle through the DST settings in the
sequence shown below.
4. When the setting you want is selected, press A to exit
the setting screen.
• The DST indicator appears to indicate that Daylight
Saving Time is turned on.
Elapsed Time
D
Start Stop
Lap/Split Times
D
Start Lap/Split
Lap/Split indicator
D
B
D
D
Re-start Clear
B
➤➤
Next Lap/
Split
D
➤➤➤➤
Stop
D
➤
Stop
➤
B
B
Clear
Stopwatch
Remaining memory
Graphic Area
Split time
Lap time
To position the lap time and split time on the display
Each press of A cycles the lap time and split time positions in the sequence shown
below.
• You can perform the above operation while stopwatch operation is ongoing or
stopped.
Remaining memory
Lap time Graphic Area
➤
Split time
The 1/100-second stopwatch can measure elapsed time
and lap/split times. Stopwatch times are stored in memory.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a lap/split time is
frozen on the display clears the lap/split time and returns
to elapsed time measurement.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-8).
Note
• See page E-49 for information about the type of data the
watch stores in memory when you use the stopwatch.
• Use the Recall Mode (page E-21) to view data stored in
memory.
Split time
AAA
➤ ➤➤
Lap time
Hours Seconds
A
Lap time
Minutes
Split time
Hours Seconds
Minutes
E-15
E-17
E-19