MO0403-EA
Operation Guide 2616
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
About This Manual
purchase, be sure to carefully read this manual and keep it on hand for later reference
Button operations are indicated using the letters shown
when necessary.
in the illustration.
Each section of this manual provides you with the
information you need to perform operations in each
Expose the watch to bright light to charge its battery before using it.
mode. Further details and technical information can be
You can use this watch even as its battery is being charged by exposure to bright light.
found in the ŇReference section.
Be sure to read ŇBattery of this manual for important information you need to
know when exposing the watch to bright light.
If the display of the watch is blank...
If the Power Saving indicator (PS) is on the display (either
flashing or steady), it means that the display is blank
because the watchs Power Saving function has turned off
the display to conserve power. Power Saving
automatically turns off the display and enters a sleep state
whenever your watch is left for a certain period where it is
dark.
The initial factory default setting is Power Saving on.
The watch recovers from the sleep state if you move it to
a well-lit area, if you press any button, or if you angle the
watch towards your face for reading.
See ŇPower Saving Function for more information.
General Guide
World Time Mode
Telememo Mode
Press C to change from mode to mode.
In any mode (except when a setting screen is on the display), press B to
iluminate the display.
Timekeeping Mode
Press C.
Countdown Timer Mode
Alarm Mode
Stopwatch Mode
H
Timekeeping
To create a new Telememo record
Use the Timekeeping Mode to set and view the current
1. In the Telememo Mode, use D (+) to cycle through the
time and date.
Number area
Month Day
record screens until the new data screen appears.
The new data screen is the one that is blank
To set the time and date
Hour : Minutes
(contains no name and telephone number).
1. In the Timekeeping Mode, hold down A until the
If the message FULL appears on the display, it
seconds start to flash, which indicates the setting
means that memory is full. To store another record,
screen.
you will first have to delete some of the records
2. Press C to move the flashing in the sequence shown
stored in memory.
below to select other settings.
Name area
2. Hold down A until the flashing cursor (_) appears in
12/24-Hour
the name area of the display.
Seconds
Hour
Minutes
DST
New Data Screen
Seconds
Format
3. In the name area, use D and B to cycle through
Day of week
characters at the cursor position. The characters cycle
in the sequence shown below.
Power Saving
Day
Month
Year
PM indicator
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3. When the setting you want to change is flashing, use D and B to change it as
Press D.
described below.
0 9
-
.
:
/
to
(space)
A Z
Setting
Button Operation
Screen
to
Seconds
Press D to reset to
.
00
Press B.
Hour, Minutes
Use D (+) and B () to change the setting.
4. When the character you want is at the cursor position, press C to move the cursor
DST
Press D to toggle between Daylight Saving
to the right.
Time (
) and Standard Time (
).
ON
OF
5. Repeat steps 3 and 4 until the name is complete.
You can input up to eight characters for the name.
12/24-Hour
)
Press D to toggle between 12-hour (12H
6. After you input the name, press C as many times as necessary to move the
Format
and 24-hour (
) timekeeping.
24H
cursor to the number area.
Year, Month, Day
Use D (+) and B () to change the setting.
When the cursor is located at the eighth space of the name area, moving the
cursor to the right causes it to jump to the first digit of the number. When the
) and
Power Saving
Press D to toggle Power Saving on (ON
cursor is at the 12th digit of the number, moving it to the right (by pressing C)
off (
).
OF
causes it to jump to the first character in the name.
7. In the number area, use D and B to cycle through numbers and symbols
4. Press A to exit the setting screen.
(hyphen, space) at the cursor position. The characters cycle in the sequence
See ŇPower Saving Function for details about configuring Power Saving settings.
shown below.
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
Press D.
The day of the week is automatically displayed in accordance with the date (year,
x
month, and day) settings.
(space)
0 to 9
Press B.
Telememo
8. When the character you want is at the cursor position, press C to move the cursor
The Telememo Mode lets you store up to 30 records, each containing name and
to the right.
telephone number data. Records are automatically sorted based on the characters
9. Repeat steps 7 and 8 until you complete number input.
of the name. You can recall records by scrolling through them on the display.
You can input up to 12 digits for the number.
10. After inputting your data, press A to store it.
Telephone number
Remaining memory
After data storage is complete, the cursor appears in the name area of the
display, ready for input of a new Telememo record.
11. Input more data (starting from step 3) or press A again to return to the
Telememo record screen (without the cursor).
The name can show only three characters at a time, so longer text scrolls
Alternate at
continuously from right to left. The last character is indicated by the symbol after
two-second
it.
interval
Name
To recall Telememo records
In the Telememo Mode, use D (+) to scroll through Telememo records on the
See ŇSort Table for details on how the watch sorts records.
display.
All of the operations in this section are performed in the Telememo Mode, which
Pressing D while the last Telememo record is on the display displays the new data
you enter by pressing C.
screen.
1
Operation Guide 2616
To edit a Telememo record
If the countdown start time is not displayed, use the procedure under ŇTo use the
countdown timer to display it.
1. In the Telememo Mode, use D (+) to scroll through the records and display the
2. Press C to move the flashing in the sequence shown below to select other
one you want to edit.
settings.
2. Hold down A until the flashing cursor appears on the display.
3. Use C to move the flashing to the character you want to change.
Auto-
4. Use D (+) and B () to change the character.
Hours
Minutes
repeat
5. After making the changes that you want, press A to store them and return to
the Telememo record screen.
To delete a Telememo record
3. While a setting is flashing, use D (+) and B () to change it.
1. In the Telememo Mode, use D (+) to scroll through the records and display the
To set the starting value of the countdown time to 100 hours, set 0:00.
one you want to delete.
See ŇTo turn auto-repeat on and off below for details on the auto-repeat setting.
2. Hold down A until the flashing cursor appears on the display.
4. Press A to exit the setting screen.
3. Hold down D and B at the same time until the watch beeps and
stops
CLR
To use the countdown timer
flashing on the display.
Press D while in the Countdown Timer Mode to start the countdown timer.
The message
appears, which indicates that the record is being deleted.
CLR
When the end of the countdown is reached and auto-repeat is turned off, the alarm
After the record is deleted, the cursor appears on the display, ready for input.
sounds for 10 seconds, or until you stop it by pressing any button. The countdown
4. Input data or press A to return to the Telememo record screen.
time is automatically reset to its starting value after the alarm stops.
Press D while a countdown operation is in progress to pause it. Press D again to
World Time
resume the countdown.
To completely stop a countdown operation, first pause it (by pressing D), and then
The World Time Mode shows you the current time in 27
press A. This returns the countdown time to its starting value.
cities (29 time zones) around the world.
Current time in the
The time settings of the Timekeeping Mode and the
To turn auto-repeat on and off
selected city code
Timekeeping
World Time Mode are independent from each other, so
1. While the countdown start time is on the display in the
Mode time
you must make separate settings for each.
Countdown Timer Mode, hold down A until the hour
Whenever you change the time setting for any city in the
setting of the countdown start time starts to flash, which
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World Time Mode, the settings of all other cities are
indicates the setting screen.
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changed accordingly.
2. Press C twice to move the flashing to the auto-repeat
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For full information on city codes, see the ŇCity Code
setting.
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Table.
3. Press D to turn auto-repeat on (
displayed) and off
All of the operations in this section are performed in the
(
not displayed).
World Time Mode, which you enter by pressing C.
4. Press A to exit the setting screen.
City code
When auto-repeat is turned on, the alarm sounds and
GMT differential
countdown starts again whenever the countdown
reaches zero. You can stop the countdown by pressing
To view the time in another city code
D, and manually reset to the countdown start time by
In the World Time Mode, press D to scroll through city codes (time zones).
pressing A.
Auto-repeat timing repeats up to seven times.
To set the World Time
1. In the World Time Mode, use D to scroll through the
city codes (time zones) and find the one you want.
Alarms
2. Hold down A until the DST on/off setting of the world
You can set five independent Daily Alarms. When an
time starts to flash, which indicates the setting screen.
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Timekeeping
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alarm is turned on, the alarm tone sounds when the alarm
3. Use C to move the flashing in the sequence shown
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Mode time
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time is reached. One of the alarms can be configured as a
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below to select other settings.
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snooze alarm or a one-time alarm, while the other four are
one-time alarms.
Minutes
Hour
DST on/off
You can also turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
There are five alarm screens numbered 1 through 5.
The hourly time signal screen is indicated by :00.
4.When the setting you want to change is flashing, use B and D to change it as
When you enter the Alarm Mode, the screen you were
described below.
viewing when you last exited the mode appears first.
Setting
Button Operation
Screen
Alarm number
All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C.
DST
Press D to toggle between Daylight Saving
Alarm time
Time (ON) and Standard Time (OF).
(Hour : Minutes)
Hour, Minutes
Use D (+) and B () to change the setting.
To set an alarm time
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
5.Press A to exit the setting screen.
When setting the world time using the 12-hour format, take care to set the time
correctly as a.m. (A indicator) or p.m. (P indicator).
x3
x1
x2
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
:00
x5
x4
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
You can configure Alarm 1 as a snooze alarm or a one-time alarm. Alarms 2
through 5 can be used as one-time alarms only.
To toggle a city code time between Standard Time and Daylight Saving Time
The snooze alarm repeats every five minutes.
1. In the World Time Mode, use D to display the city code
2. After you select an alarm, hold down A until the hour setting of the alarm time
DST indicator
whose Standard Time/Daylight Saving Time setting you
starts to flash. This indicates the setting screen.
want to change.
This operation automatically turns on the alarm.
2. Hold down A until the DST on/off setting of the world
3. Press C to move the flashing between the hour and minute settings.
time starts to flash, which indicates the setting screen.
4. While a setting is flashing, use D (+) and B () to change it.
3. Press D to toggle Daylight Saving Time (DST
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When setting the alarm time using the 12-hour format, take care to set the time
displayed) and Standard Time (DST not displayed).
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correctly as a.m. (A indicator) or p.m. (P indicator).
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4. Press A to exit the setting screen.
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5. Press A to exit the setting screen.
Note that you cannot switch between Standard Time
and Daylight Saving Time while
is selected as the
GMT
city code.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds. In the case of the snooze
Note that the DST/Standard Time setting affects only the currently displayed city
alarm, the alarm operation is performed a total of seven times, every five minutes, or
code. Other city codes are not affected.
until you turn the alarm off or change it to a one-time alarm.
The Daylight Saving Time indicator appears while the GMT differential is on the
display only. It does not appear while the city code is on the display.
Note
The DST indicator is on the display whenever you display a city code for which
Pressing any button stops the alarm tone operation.
Daylight Saving Time is turned on.
Performing any one of the following operations during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen
Countdown Timer
Displaying the Alarm setting screen
1
You can set the countdown timer within a range of one
To test the alarm
minute to 100 hours. An alarm sounds when the
Timekeeping
In the Alarm Mode, hold down D to sound the alarm.
Mode time
countdown reaches zero.
Minutes
You can also select auto-repeat, which automatically
2
2
5
5
To turn Alarms through on and off
2
5
2
2
5
5
restarts the countdown from the original value you set
1. In the Alarm Mode, use D to select a one-time alarm
whenever zero is reached.
(alarm number 2 through 5).
All of the operations in this section are performed in the
2. Press A to toggle the displayed alarm on and off.
Countdown Timer Mode, which you enter by pressing
Turning on a one-time alarm (2 through 5) displays the
C.
one-time alarm on indicator (
) on its screen.
The one-time alarm on indicator is displayed in all
To set the countdown start time
modes.
1. While the countdown start time is on the display in the
If any alarm is on, the alarm on indicator is shown on
Countdown Timer Mode, hold down A until the hour
Hours
the display in all modes.
One-time alarm on
Seconds
setting of the countdown start time starts to flash, which
indicator
indicates the setting screen.
2
Operation Guide 2616
1
1
To select the operation of Alarm 11
1
Warning!
Always make sure you are in a safe place whenever you are reading the
1. In the Alarm Mode, use D to select Alarm 1.
display of the watch using the auto light switch. Be especially careful when
2. Press A to cycle through the available settings in the sequence shown below.
running or engaged in any other activity that can result in accident or injury.
Snooze alarm on indicator (
) and one-time alarm on indicator (
)
Also take care that sudden illumination by the auto light switch does not
surprise or distract others around you.
When you are wearing the watch, make sure that its auto light switch is turned
off before riding on a bicycle or operating a motorcycle or any other motor
vehicle. Sudden and unintended operation of the auto light switch can create a
One-time alarm on
Snooze alarm on
Alarm off
distraction, which can result in a traffic accident and serious personal injury.
The applicable alarm on indicator (
or
) is displayed in all modes when an
To turn the auto light switch on and off
alarm is turned on.
In the Timekeeping Mode, hold down D for about two seconds to toggle the auto light
The snooze alarm on indicator (
) flashes during the 5-minute intervals between
switch on (
displayed) and off (
not displayed).
alarms.
The auto light switch on indicator (
) is on the display in all modes while the auto
Displaying the Alarm 1 setting screen while the snooze alarm is turned on
light switch is turned on.
automatically turns off the snooze alarm (making Alarm 1 a one-time alarm).
To turn the hourly time signal on and off
Battery
1. In the Alarm Mode, use D to select the Hourly Time
Signal.
This watch is equipped with a solar cell and a rechargeable battery (secondary
2. Press A to toggle it on and off.
battery) that is charged by the electrical power produced by the solar cell. The
Turning on the Hourly Time Signal displays the hourly
ilustration shown below shows how you should position the watch for charging.
time signal on indicator (
) on its screen.
Solar cell
The hourly time signal on indicator is displayed in all
Example: Orient the watch so its
modes.
face is pointing at a light source.
The illustration shows how to
position a watch with a resin band.
Note that charging efficiency
Hourly time signal on
drops when any part of the solar
indicator
cell is blocked by clothing, etc.
Normally, you should try to keep the watch
Stopwatch
outside of your sleeve as much as possible.
Charging is significantly reduced if the face is
The stopwatch lets you measure elapsed time, split times,
only partially covered.
Timekeeping
and two finishes.
Mode time
The display range of the stopwatch is 59 minutes, 59.99
Important!
Seconds
seconds.
Storing the watch for long periods in an area where there is no light or wearing it in
The stopwatch continues to run, restarting from zero
such a way that it is blocked from exposure to light can cause rechargeable battery
after it reaches its limit, until you stop it.
power to run down. Be sure that the watch is normally exposed to bright light
The stopwatch measurement operation continues even
whenever possible.
if you exit the Stopwatch Mode.
This watch employs a solar cell that converts light into electricity, which charges a
Exiting the Stopwatch Mode while a split time is frozen
built-in rechargeable battery. Normally, the rechargeable battery should not need
on the display clears the split time and returns to
replacement, but after very long use over a number of years, the rechargeable
elapsed time measurement.
battery may lose its ability to achieve a full charge. Should you notice problems with
Minutes
1/100 second
All of the operations in this section are performed in the
getting the rechargeable battery to a full charge, contact your dealer or CASIO
Stopwatch Mode, which you enter by pressing C.
distributor about having the rechargeable battery replaced.
The rechargeable battery should be replaced with a CASIO-specified CTL1616
To measure times with the stopwatch
battery only. Other rechargeable batteries can cause damage to the watch.
All data stored in memory is deleted, and the current time and all other settings
Elapsed Time
return to their initial factory defaults whenever battery power drops to Level 4 and
A
D
D
D
D
➤
➤
➤
➤
when you have the battery replaced.
Start
Stop
Re-start
Clear
Stop
Turn on the watchs Power Saving function and keep it in an area normally exposed
to bright light when storing it for long periods. This helps to keep the rechargeable
Split Time
battery from going dead.
A
D
A
A
D
➤
➤
➤
➤
Battery Power Indicator
Clear
Start
Split
Split release
Stop
The battery power indicator on the display shows you the current status of the
(SPL displayed)
rechargeable batterys power.
Two Finishes
Level
Function Status
Battery Power
Battery power indicator
A
A
D
A
D
➤
➤
➤
➤
Indicator
Start
Split
Clear
Stop
Split release
1
All functions enabled.
First runner
Second runner
Display time of
finishes.
second runner.
finishes.
Display time of
first runner.
2
All functions enabled.