MO1809-EA
© 2018 CASIO COMPUTER CO., LTD.
Operation Guide 3468
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.
• 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.
• 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-1
• To ensure that this watch provides you with the years of service for which it is
designed, carefully read and follow the instructions under “Operating Precautions”
and “User Maintenance.”
• Be sure to keep all user documentation handy for future reference.
E-2
Recall Mode …………………………………………………………………………… E-23
To recall stopwatch time records………………………………………………E-24
To delete a log …………………………………………………………………E-26
Countdown Timer………………………………………………………………………E-27
To use the countdown timer ……………………………………………………E-28
To configure countdown start time and auto-repeat settings ………………E-29
Alarms ……………………………………………………………………………………E-31
To set an alarm time ……………………………………………………………E-33
To test the alarm ………………………………………………………………E-35
To select the operation of Alarm
To turn Alarms
To turn the hourly time signal on and off ……………………………………E-38
Dual Time ………………………………………………………………………………E-39
To set the Dual Time …………………………………………………………… E-39
E-4
and on and off …………………………………………E-37
……………………………………………E-36
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press B to illuminate
the face of the watch.
Stopwatch Mode
Timekeeping Mode
Press C.
▲
Contents
About This Manual …………………………………………………………………… E-1
General Guide ………………………………………………………………………… E-6
Timekeeping …………………………………………………………………………… E-8
To set the time and date ……………………………………………………… E-8
To toggle between 12-hour and 24-hour timekeeping ……………………… E-10
To toggle the Timekeeping Mode between DST and Standard Time …… E-11
Stopwatch ………………………………………………………………………………E-12
To measure elapsed time ……………………………………………………… E-16
To measure elapsed time with lap times ……………………………………E-16
To measure elapsed time with split times ……………………………………E-18
To time first and second place finishes ……………………………………… E-20
Illumination ……………………………………………………………………………E-41
To illuminate the display manually …………………………………………… E-41
To specify the illumination duration……………………………………………E-42
Reference ………………………………………………………………………………E-43
To turn the button operation tone on and off ………………………………… E-44
Specifications …………………………………………………………………………E-47
Operating Precautions ………………………………………………………………E-49
User Maintenance ……………………………………………………………………E-60
Recall Mode
▲
Dual Time Mode
Countdown Timer Mode
▲
Alarm Mode
E-3
E-5
E-6
Timekeeping
Month – DayDay of week
Minutes
Hours
PM indicator
Seconds
E-8
▲
Use the Timekeeping Mode to set and view the current
time and date.
To set the time and date
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C to move the flashing in the sequence shown
Seconds
below to select other settings.
Seconds
Day
DST
Month
Hour
Minutes
Year
▲
3. When the setting you want to change is flashing, use D and E to change it as
described below.
Screen: To do this: Do this:
4. 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.
• See “Daylight Saving Time (DST) Setting” below for details about the DST setting.
Reset the seconds to Press D.
Toggle between Daylight Saving Time ( )
and Standard Time ( )
Change the hour or minutes Use D (+) and E (–).
Change the year Use D (+) and E (–).
Change the month or day
Press D.
▲
E-7
E-9
Operation Guide 3468
To toggle between 12-hour and 24-hour timekeeping
In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and
24-hour timekeeping.
With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
x
times in the range of noon to 11:59 p.m. and the A (AM) 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
x
any indicator.
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
x
applied in all other modes.
The A and P indicators are not displayed with the Timekeeping Mode time on the
x
Countdown Timer Mode and Dual Time Mode screens.
Daylight Saving Time (DST) Setting
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.
E-10
Stopwatch
Remaining
free records
Hours
Minutes
Seconds
E-12
• See “To measure elapsed time with lap times” (page E-16) and “To measure elapsed
time with split times” (page E-18) for more information about each type of measurement.
• You can perform elapsed time measurement starting from either the lap time screen
or the split time screen (pages E-16 and E-18). Whenever you enter the Stopwatch Mode,
the screen (lap time or split time) that was displayed when you last exited the mode
will appear first.
• During a stopwatch elapsed time operation, the upper display initially shows
minutes, seconds, and a 1/100-second value. This changes to hours, minutes, and
seconds when the time in the upper display exceeds 60 minutes.
• The lower display initially shows hours, minutes, seconds, and a 1/100-second
value. This changes to hours, minutes, and seconds when the time in the lower
display exceeds 10 hours.
The stopwatch lets you measure elapsed time, lap times,
split times, and two finishes. Lap times and split times can
be stored in memory.
• The display range of the stopwatch is 99 hours,
59 minutes, 59 seconds.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-6).
Note
• “Lap time” is the time spent to cover a specific segment
of a race, such as one lap around a track. “Split time” is
the time spent from the beginning of a race up to a
1/100
second
certain point.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
To toggle the Timekeeping Mode between DST and Standard Time
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. Press C once and the DST setting screen appears.
3. Press D to toggle between Daylight Saving Time (
displayed) and Standard Time (
4. Press A to exit the setting screen.
DST
• The
indicator appears on the Timekeeping and
On/Off status
DST indicator
• The stopwatch measurement operation continues even if you exit the Stopwatch
Mode.
• For information about how stopwatch times are stored in memory, see “Memory
Management” (page E-21).
Viewing the Stopwatch Displays
The information that appears in the watch’s upper and lower displays depends on
whether you are measuring lap times or split times.
Lap Time Measurement
Upper Display: Lap time
Lower Display: Elapsed time
Split Time Measurement
Upper Display: Lap time
Lower Display: Elapsed time (Split time appears here for eight seconds as it is stored
in memory.)
Minutes
Seconds
Minutes
Hours
Alarm Mode screens to indicate that Daylight Saving
Time is turned on.
1/100 second Hours
Seconds
More than one hour
1/100 second
More than 10 hours
▲ ▲
Hours
Minutes
Minutes
displayed).
Seconds
Seconds
E-11
E-13
E-14
To measure elapsed time
Note
• You can perform the following steps starting from either the lap time screen or the
split time screen.
1. Press D to start the stopwatch.
2. Press D again to stop the stopwatch.
• You can resume the measurement operation by pressing D.
3. Press E to clear the stopwatch to all zeros.
To measure elapsed time with lap times
1. When the stopwatch display shows all zeros, press E
to display the lap time screen (indicated by
2. Press D to start an elapsed time measurement.
• At the time, both the upper and lower displays will
show identical times.
).
3. Press E to record the time of the first lap.
E-16
To measure elapsed time with split times
Lap time
Elapsed time
E-18
1. When the stopwatch display shows all zeros, press E
to display the split time screen (indicated by
2. Press D to start an elapsed time measurement.
• At the time, both the upper and lower displays will
show identical times.
3. Press E to record the time of the first split.
• The current split time appears in the lower display for
about eight seconds, as the total elapsed time, next
lap time, and next split time continue to be timed
internally by the watch. The split number of the
displayed time appears in the upper display.
• After eight seconds, the ongoing lap time
measurement appears in the upper display and the
ongoing elapsed time measurement appears in the
lower display.
E-15
Lap time
Elapsed time
Lap time
Lap number
Split Time Recording
Displayed for eight seconds
).
(
after E is pressed.
Split number
Split time
)
• This freezes the current lap time in the upper part of
the display for about eight seconds, while
measurement of total elapsed time and the next lap
time continue internally. The lap number of the
displayed time appears in the lower display.
• After eight seconds, the ongoing elapsed time
measurement re-appears in the lower display.
4. Repeat step 3 to record more lap times.
5. Press D to stop the stopwatch.
6. Press E to clear the stopwatch to all zeros.
• Lap numbers are incremented automatically starting
from 1 whenever you press E in step 3 of the above
procedure. The maximum lap number is 99. Recording
a lap after that causes the lap number count to restart
from 00.
4. Repeat step 3 to record more split times.
5. Press D to stop the stopwatch.
6. Press E to clear the stopwatch to all zeros.
• Split numbers are incremented automatically starting
from 1 whenever you press E in step 3 of the above
procedure. The maximum split number is 99. Recording
a split time after that causes the split number count to
restart from 00.
E-17
E-19
Operation Guide 3468
To time first and second place finishes
1. When the stopwatch display shows all zeros, press E to display the split time
screen (indicated by
).
2. Press D to start a time measurement.
3. Press E when the first finisher crosses the finish line.
• This freezes the time of the first finisher in the lower part of the display for about
eight seconds. After that, the display returns to elapsed time measurement.
4. Press D when the second finisher crosses the finish line.
• The second finisher’s time will appear in the lower display.
• The difference between the first finisher’s and the second finisher’s time will
appear in the upper display.
5. Press E to clear the stopwatch to all zeros.
E-20
How stopwatch data is stored
The following table shows how stopwatch data is stored when you perform stopwatch
button operations.
Stopwatch Button Operation Data Storage Description
From all-zeros, press D to
start.
Press E to display lap/split
time.
Press D to stop elapsed time
measurement and then press
E
to reset.
Creates a new log. Stores the date the button was pressed,
and the new log number.
Creates a new record with each button operation. Stores
the lap and split times and total elapsed time at each point
the button is pressed.
Resets the elapsed time to all zeros without recording data.
• See “Recall Mode” (page E-23) for details on how to recall time records from memory.
E-22
To recall stopwatch time records
1. In the Stopwatch Mode, check to make sure that the displays reset to all zeros (page
E-16).
• If all zeros are not displayed, reset the stopwatch.
2. Use the E button to select either the lap time screen (to view lap time records) or
the split time screen (to view split time records) (pages E-16 and E-18).
• To convert a lap time saved in the Stopwatch Mode to a split time, select the split
time screen.
3. Press the C button to enter the Recall Mode.
4. Use the A button to scroll through the log title screens from the newest to the
oldest until the title screen of the log whose records you want to view is displayed.
5. Use D (forward) and E (back) to scroll through records in lap number sequence.
E-24
Memory Management
A new log is created each time you press D in the Stopwatch Mode to start a new
elapsed time measurement operation. A log contains a log title screen, and records of
all the lap or split times you record during the current elapsed time measurement
operation.
• The capacity of the watch’s memory is 60 records.
• If you are adding records to a log when there are multiple logs in memory and
watch memory becomes full, adding another record causes the oldest log in
memory and all of its records to be deleted automatically to make room for new
records.
E-21
Recall Mode
Day of week
Month – Day
Log number
Log Title Screen
Log Title Screen
Log number
• Whether you will be able to view lap time records or split time records will depend
on the screen you selected in step 2, above.
Use the Recall Mode to recall and delete logs and records
you stored in the Stopwatch Mode. You can use the
Recall Mode to view both lap and split time records.
• When you enter the Recall Mode, the newest log
recorded in the Stopwatch Mode will appear first. If
there are no logs in memory,
display.
• You can use the Recall Mode to check memory data
even while a stopwatch elapsed time measurement
operation is in progress. However, the time data that is
currently being measured will not appear in the Recall
Mode.
• You can convert a lap time saved in the Stopwatch
Mode to a split time (page E-24).
First record Last record
Lap number
Lap time
▲
Press D.
▲
Press E.
▲
Split time
D
▲
Split number
appears on the
E-23
▲
E
E-25
To delete a log
1. In the Recall Mode, display the title screen of the log you want to delete.
2. Hold down D and E until stops flashing on the display.
• This deletes the log and all the records inside it.
• Deleting a single log slides all newer logs (ones with higher log numbers) upwards
to fill the empty space. This cause the log numbers of all the newer logs to be
reduced by 1. If there are six logs currently in memory (numbered 01 through 06)
and you delete log 03, the numbers of logs that previously were numbered 04, 05,
and 06 will change to 03, 04, and 05.
E-26
To use the countdown timer
Press D while in the Countdown Timer Mode to start the countdown timer.
• When the end of the countdown is reached and auto-repeat is turned off, the alarm
sounds for 10 seconds or until you stop it by pressing any button. The countdown
time is reset automatically to its starting value after the alarm stops.
• When auto-repeat is turned on, the countdown will restart automatically without
pausing when it reaches zero. The alarm sounds when the countdown reaches
zero.
• The countdown timer measurement operation continues even if you exit the
Countdown Timer Mode.
• Press D while a countdown operation is in progress to pause it. Press D again to
resume the countdown.
• To stop a countdown operation completely, first pause it (by pressing D), and then
press E. This returns the countdown time to its starting value.
E-28
Countdown Timer
Timekeeping
Mode time
Hours
Auto-repeat
on indicator
Minutes
To configure countdown start time and auto-repeat settings
On/Off status
Auto-repeat on indicator
You can set the countdown timer within a range of one
minute to 24 hours. An alarm sounds when the countdown
Seconds
reaches zero.
• You also can select auto-repeat, which automatically
restarts the countdown from the original value you set
whenever zero is reached.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C
(page E-7).
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until the hour
setting of the countdown start time starts to flash, which
indicates the setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” (page
E-28) to display it.
2. Press C to move the flashing in the sequence shown
below, and select the setting you want to change.
Start Time
(Hours)
Start Time
(Minutes)
Auto-Repeat
On/Off
E-27
E-29
Operation Guide 3468
3. Perform the following operations, depending on which setting currently is selected
on the display.
• While the start time setting is flashing, use D (+) and E (–) to change it.
• Set
to specify 24 hours.
• While the auto-repeat on/off setting (
D
to toggle auto-repeat on (
4. Press A to exit the setting screen.
• The auto-repeat on indicator (
screen while this function is turned on.
• Frequent use of auto-repeat and the alarm can run down battery power.
E-30
Alarm Types
The alarm type is determined by the settings you make, as described below.
Daily alarm
•
Set the hour and minutes for the alarm time. This type of setting causes the alarm to
sound everyday at the time you set.
Date alarm
•
Set the month, day, hour and minutes for the alarm time. This type of setting causes
the alarm to sound at the specific time, on the specific date you set.
1-Month alarm
•
Set the month, hour and minutes for the alarm time. This type of setting causes the
alarm to sound everyday at time you set, only during the month you set.
Monthly alarm
•
Set the day, hour and minutes for the alarm time. This type of setting causes the alarm
to sound every month at the time you set, on the day you set.
E-32
4. While a setting is flashing, use D (+) and E (–) to change it.
• To set an alarm that does not include a month (daily alarm, monthly alarm), set
for the month. Use D and E until the
month setting is flashing.
• To set an alarm that does not include a day (daily alarm, 1-month alarm), set
for the day. Use D and E until the
month and 1) while the day setting is flashing.
• When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (A indicator) or p.m. (P indicator).
5. Press A to exit the setting screen.
Alarm Operation
The alarm sounds at the preset time for about 10 seconds. The snooze feature
) is turned on, the alarm operation is performed a total of seven times, every
(Alarm
five minutes, until you turn the alarm off or turn off the snooze feature (page E-36).
• Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode time.
E-34
or ) is flashing on the display, press
) and off ( ).
) is displayed on the Countdown Timer Mode
mark appears (between 12 and 1) while
mark appears (between the end of the
Alarms
Alarm date
(Month – Day)
Alarm number
Alarm time
(Hour : Minutes)
To set an alarm time
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash. This indicates the setting screen.
• This operation turns on the alarm automatically.
3
. Press C to move the flashing in the sequence shown below to select other settings.
Note
• Pressing any button stops the alarm tone operation.
• Performing any one of the operations below during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen (page E-8)
Displaying the Alarm
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
You can set up to three independent multi-function alarms
with hour, minutes, month, and day. When an alarm is
turned on, the alarm tone sounds when the alarm time is
reached. One of the alarms has a snooze feature.
You also can turn on an Hourly Time Signal that causes
the watch to beep twice every hour on the hour.
• There are three alarm screens numbered
The hourly time signal screen is indicated by
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C (page E-7).
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
• Alarm has a snooze feature.
The snooze alarm operation repeats every five minutes.
•
Month
Hour
Minutes
settinwg screen (page E-33)
Day
through .
.
E-31
E-33
E-35
To select the operation of Alarm
1. In the Alarm Mode, use D to select Alarm .
2. Press A to cycle through the available settings in the sequence shown below.
• The applicable alarm on indicator is displayed in all modes when an alarm is turned
on.
• The snooze indicator flashes while the snooze alarm is sounding and during the
5-minute intervals between alarms.
• Displaying the Alarm
turns off the snooze alarm automatically.
E-36
To turn the hourly time signal on and off
Hourly time signal on
indicator
E-38
Snooze indicator
Snooze feature onAlarm on Alarm off
setting screen (page E-33) while the snooze alarm is turned on
1. In the Alarm Mode, use D to select the Hourly Time
Signal.
2. Press A to toggle the displayed item on and off.
• Turning on the Hourly Time Signal displays the hourly
time signal on indicator on its screen.
• The hourly time signal on indicator is displayed in all
modes.
To turn Alarms and on and off
Alarm on indicator
In the Alarm Mode, use D to select alarm number or .
1.
2. Press A to toggle the displayed alarm on and off.
• Turning on an alarm (
indicator on its screen.
• The alarm on indicator is displayed in all modes.
• If any alarm is on, the alarm on indicator is shown on
the display in all modes.
Dual Time
Timekeeping Mode time
Dual time
(Hour : Minutes Seconds)
The Dual Time Mode lets you keep track of time in a
different time zone. You can select Standard Time or
Daylight Saving Time for the Dual Time.
• The seconds count of the Dual Time is synchronized
with the seconds count of the Timekeeping Mode.
To set the Dual Time
1. Press C to enter the Dual Time Mode (page E-7).
. In the Dual Time Mode, hold down A until the DST
2
setting starts to flash, which indicates the setting screen.
3. Press C to move the flashing in the sequence shown
below to select the other setttings.
or ) displays the alarm on
Hour
DST
E-37
Minutes
E-39
Operation Guide 3468
4. When the setting you want to change is flashing, use D and E to change it as
described below.
Screen: To do this: Do this:
5. Press A to exit the setting screen.
• The
for the Dual Time Mode time.
E-40
To specify the illumination duration
E-42
Button Operation Tone
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down C to toggle
the button operation tone on (mute indicator not displayed) and off (mute indicator
displayed).
• Holding down C to turn the button operation tone on or off also causes the watch’s
current mode to change.
• The mute indicator is displayed in all modes when the button operation tone is
turned off.
E-44
Toggle between Daylight Saving Time ( )
and Standard Time ( )
Change the hour or minutes Use D (+) and E (–).
DST
indicator on the Dual Time Mode screen indicates that DST is turned on
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
2. While the seconds are flashing, press E to toggle the
setting between 1.5 seconds (
3. Press A to exit the setting screen.
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
• The multi-function alarms and Countdown Timer Mode
alarm will sound even if the button operation tone is
turned off.
Press D.
) and 3 seconds ( ).
Illumination
An LED (light-emitting diode) illuminates the face of the
watch for easy reading in the dark.
• See “Illumination Precautions” (page E-46) for other
important information about using illumination.
To illuminate the display manually
In any mode, press B to turn on illumination.
• You can use the procedure below to select either
1.5 seconds or 3 seconds as the illumination duration.
When you press B, illumination will remain on for about
1.5 seconds or 3 seconds, depending on the current
illumination duration setting.
E-41
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto Return Feature
• If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch saves any settings you have made up
to that point and exits the setting screen automatically.
• The watch will change to the Timekeeping Mode automatically if you do not perform
any operation in the Recall Mode or Alarm Mode for two or three minutes.
E-43
Scrolling
The D and E buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls through the data at high speed.
Timekeeping
• Resetting the seconds to while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
• The year can be set in the range of 2000 to 2099.
• The watch’s built-in full automatic calendar makes allowances for different month
without changing the minutes.
lengths and leap years. Once you set the date, there should be no reason to
change it except after you have the watch’s batteries replaced.
E-45
Illumination Precautions
• Illumination may be difficult to see when viewed under direct sunlight.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
E-46
Countdown Timer:
Measuring unit: one second
Input range: one minute to 24 hours (1-minute increments and 1-hour increments)
Other: Auto-repeat timing
Alarms:
3 Multi-function*alarms (1 with snooze feature); Hourly Time Signal
*Alarm type: Daily alarm, Date alarm, 1-month alarm, Monthly alarm
Dual Time:
Hour, minutes, seconds, a.m. (A)/p.m. (P)
Other: Daylight Saving Time (summer time)/Standard Time
Illumination:
Other:
Battery:
Specifications are subject to change without notice.
E-48
LED (light-emitting diode); Selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
Button operation tone on/off
One lithium battery (Type: CR2025)
Approximately 10 years on type CR2025 (10 seconds of alarm operation per day,
one illumination operation (1.5 seconds) per day)
Specifications
Accuracy at normal temperature:
Timekeeping:
Stopwatch:
Hour, minutes, seconds, a.m. (A)/ p.m. (P), month, day, day of the
week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Daylight Saving Time (summer time)/Standard Time
Measurement Capacity: 99 hours, 59 minutes, 59 seconds
Measurement Units: Depends on range.
Lap Times: 1/100 second from 00:00 00 to 00:59 59.99; 1 second from 1:00 00
to 99:59 59
Split Times: 1/100 second from 00:00 00 to 09:59 59.99; 1 second from 10:00 00
to 99:59 59
Measurement Types: Elapsed time, lap times, split times, two finishes
Memory Capacity: 60 records (used for lap times and split times)
Other: Lap/split numbers
± 30 seconds a month
Operating Precautions
Water Resistance
•
The information below applies to watches with WATER RESIST or WATER
RESISTANT marked on the back cover.
Water
On watch front or on
Marking
back cover
Hand washing, rain Yes Yes Yes Yes
Water-related work, swimming
Example of
Daily Use
Windsurfing No No Yes Yes
•
OPUM-E
Skin diving No No Yes Yes
Do not use your watch for scuba diving or other types of diving that requires air tanks.
Resistance
Under Daily
Use
Enhanced Water Resistance Under Daily
Use
5
Atmospheres10Atmospheres20Atmospheres
No
BAR mark
5BAR 10BAR 20BAR
No Yes Yes Yes
E-47
E-49
Operation Guide 3468
•
Watches that do not have WATER RESIST or WATER RESISTANT marked on the
back cover are not protected against the effects of sweat. Avoid using such a watch
under conditions where it will be exposed to large amounts of sweat or moisture, or
to direct splashing with water.
•
Even if a watch is water resistant, note the usage precautions described below.
Such types of use reduce water resistance performance and can cause fogging of
the glass.
Do not operate the crown or buttons while your watch is submersed in water or
−
wet.
− Avoid wearing your watch while in the bath.
− Do not wear your watch while in a heated swimming pool, sauna, or any other high
temperature/high humidity environment.
− Do not wear your watch while washing your hands or face, while doing housework,
or while performing any other task that involves soaps or detergents.
•
After submersion in seawater, use plain water to rinse all salt and dirt from your
watch.
•
To maintain water resistance, have the gaskets of your watch replaced periodically
(about once every two or three years).
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Band
•
Tightening the band too tightly can cause you to sweat and make it difficult for air to
pass under the band, which can lead to skin irritation. Do not fasten the band too
tightly. There should be enough room between the band and your wrist so you can
insert your finger.
•
Deterioration, rust, and other conditions can cause the band to break or come off of
your watch, which in turn can cause band pins to fly out of position or to fall out. This
creates the risk of your watch falling from your wrist and becoming lost, and also
creates the risk of personal injury. Always take good care of your band and keep it
clean.
•
Immediately stop using a band if you even notice any of the following: loss of band
flexibility, band cracks, band discoloration, band looseness, band connecting pin
flying or falling out, or any other abnormality. Take your watch to your original retailer
or to a CASIO service center for inspection and repair (for which you will be charged)
or to have the band replaced (for which you will be charged).
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Magnetism
•
Though a digital watch normally is not affected by magnetism, very strong
magnetism (from medical equipment, etc.) should be avoided because it can cause
malfunction and damage to electronic components.
Electrostatic Charge
•
Exposure to very strong electrostatic charge can cause your watch to display the
wrong time. Very strong electrostatic charge even can damage electronic
components.
•
Electrostatic charge can cause the display to go blank momentarily or cause a
rainbow effect on the display.
Chemicals
•
Do not allow your watch to come into contact with thinner, gasoline, solvents, oils, or
fats, or with any cleaners, adhesives, paints, medicines, or cosmetics that contain
such ingredients. Doing so can cause discoloration of or damage to the resin case,
resin band, leather, and other parts.
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•
A trained technician will inspect your watch for proper water resistance whenever
you have its battery replaced. Battery replacement requires the use of special tools.
Always request battery replacement from your original retailer or from an authorized
CASIO service center.
•
Some water-resistant watches come with fashionable leather bands. Avoid
swimming, washing, or any other activity that causes direct exposure of a leather
band to water.
•
The inside surface of the watch glass may fog when the watch is exposed to a
sudden drop in temperature. No problem is indicated if the fogging clears up
relatively quickly. Sudden and extreme temperature changes (such as coming into
an air conditioned room in the summer and standing close to an air conditioner
outlet, or leaving a heated room in the winter and allowing your watch to come into
contact with snow) can cause it to take longer for glass fogging to clear up. If glass
fogging does not clear up or if you notice moisture inside of the glass, immediately
stop using your watch and take it to your original retailer or to an authorized CASIO
service center.
•
Your water-resistant watch has been tested in accordance with International
Organization for Standardization regulations.
Temperature
•
Never leave your watch on the dashboard of a car, near a heater, or in any other
location that is subject to very high temperatures. Do not leave your watch where it
will be exposed to very low temperatures. Temperature extremes can cause your
watch to lose or gain time, to stop, or otherwise malfunction.
•
Leaving your watch in an area hotter than +60°C (140°F) for long periods can lead
to problems with its LCD. The LCD may become difficult to read at temperatures
lower than 0°C (32°F) and greater than +40°C (104°F).
Impact
•
Your watch is designed to withstand impact incurred during normal daily use and
during light activity such as playing catch, tennis, etc. Dropping your watch or
otherwise subjecting it to strong impact, however, can lead to malfunction. Note that
watches with shock-resistant designs (G-SHOCK, BABY-G, G-MS) can be worn
while operating a chain saw or engaging in other activities that generate strong
vibration, or while engaging in strenuous sports activities (motocross, etc.)
Storage
•
If you do not plan to use your watch for a long time, thoroughly wipe it free of all dirt,
sweat, and moisture, and store it in a cool, dry place.
Resin Components
•
Allowing your watch to remain in contact with other items or storing it together with
other items for long periods while it is wet can cause color on resin components to
transfer to the other items, or the color of the other items to transfer to the resin
components of your watch. Be sure to dry off your watch thoroughly before storing it
and make sure it is not in contact with other items.
•
Leaving your watch where it is exposed to direct sunlight (ultraviolet rays) for long
periods or failure to clean dirt from your watch for long periods can cause it to
become discolored.
•
Friction caused by certain conditions (strong external force, sustained rubbing,
impact, etc.) can cause discoloration of painted components.
•
If there are printed figures on the band, strong rubbing of the printed area can cause
discoloration.
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E-53
E-55
•
Leaving your watch wet for long periods can cause fluorescent color to fade. Wipe
the watch dry as soon as possible after it becomes wet.
•
Semi-transparent resin parts can become discolored due to sweat and dirt, and if
exposed to high temperatures and humidity for long periods.
•
Daily use and long-term storage of your watch can lead to deterioration, breaking, or
bending of resin components. The extent of such damage depends on usage
conditions and storage conditions.
Leather Band
•
Allowing your watch to remain in contact with other items or storing it together with
other items for long periods while it is wet can cause the color of the leather band to
transfer to the other items or the color of the other items to transfer to the leather
band. Be sure to dry off your watch thoroughly with a soft cloth before storing it and
make sure it is not in contact with other items.
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Bacteria and Odor Resistant Band
•
The bacteria and odor resistant band protects against odor generated by the
formation of bacteria from sweat, which ensures comfort and hygiene. In order to
ensure maximum bacteria and odor resistance, keep the band clean. Use an
absorbent soft cloth to thoroughly wipe the band clean of dirt, sweat, and moisture.
A bacteria and odor resistant band suppresses the formation of organisms and
bacteria. It does not protect against rash due to allergic reaction, etc.
Liquid Crystal Display
•
Display figures may be difficult to read when viewed from an angle.
Watch with Data Memory
•
Allowing the battery to go dead, replacing the battery, or having your watch repaired
can cause all data in watch memory to be lost. Note that CASIO COMPUTER CO.,
LTD. assumes no responsibility for any damages or losses caused by data lost due
to malfunction or repair of your watch, replacement of the battery, etc. Be sure to
keep separate written copies of all important data.
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•
Leaving a leather band where it is exposed to direct sunlight (ultraviolet rays) for
long periods or failure to clean dirt from a leather band for long periods can cause it
to become discolored.
CAUTION:
Metal Components
•
•
Exposing a leather band to rubbing or dirt can cause color transfer and
discoloration.
Failure to clean dirt from metal components can lead to formation of rust, even if
components are stainless steel or plated. If metal components exposed to sweat or
water, wipe thoroughly with a soft, absorbent cloth and then place the watch in a
well-ventilated location to dry.
Use a soft toothbrush or similar tool to scrub the metal with a weak solution of water
and a mild neutral detergent, or with soapy water. Next, rinse with water to remove
all remaining detergent and then wipe dry with a soft absorbent cloth. When washing
metal components, wrap the watch case with kitchen plastic wrap so it does not
come into contact with the detergent or soap.
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 your
watch or its malfunction.
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Operation Guide 3468
User Maintenance
Caring for Your Watch
Remember that you wear your watch next to your skin, just like a piece of clothing. To
ensure your watch performs at the level for which it is designed, keep it clean by
frequently wiping with a soft cloth to keep your watch and band free of dirt, sweat,
water and other foreign matter.
•
Whenever your watch is exposed to sea water or mud, rinse it off with clean fresh
water.
•
For a metal band or a resin band with metal parts, use a soft toothbrush or similar
tool to scrub the band with a weak solution of water and a mild neutral detergent, or
with soapy water. Next, rinse with water to remove all remaining detergent and then
wipe dry with a soft absorbent cloth. When washing the band, wrap the watch case
with kitchen plastic wrap so it does not come into contact with the detergent or soap.
•
For a resin band, wash with water and then wipe dry with a soft cloth. Note that
sometimes a smudge like pattern may appear on the surface of a resin band. This
will not have any effect on your skin or clothing. Wipe with a cloth to remove the
smudge pattern.
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•
Clean water and sweat from a leather band by wiping with a soft cloth.
•
Not operating a watch crown, buttons, or rotary bezel could lead to later problems
with their operation. Periodically rotate the crown and rotary bezel, and press
buttons to maintain proper operation.
Dangers of Poor Watch Care
Rust
•
Though the metal steel used for your watch is highly rust-resistant, rust can form if
your watch is not cleaned after it becomes dirty.
Dirt on your watch can make it impossible for oxygen to come into contact with the
−
metal, which can lead to breakdown of the oxidization layer on the metal surface
and the formation of rust.
•
Rust can cause sharp areas on metal components and can cause band pins to fly
out of position or to fall out. If you ever notice any abnormality immediately stop
using your watch and take it to your original retailer or to an authorized CASIO
service center.
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•
Even if the surface of the metal appears clean, sweat and rust in crevasses can soil
the sleeves of clothing, cause skin irritation, and even interfere with watch
performance.
Premature Wear
•
Leaving sweat or water on a resin band or bezel, or storing your watch an area
subject to high moisture can lead to premature wear, cuts, and breaks.
Skin Irritation
•
Individuals with sensitive skin or in poor physical condition may experience skin
irritation when wearing a watch. Such individuals should keep their leather band or
resin band particularly clean. Should you ever experience a rash or other skin
irritation, immediately remove your watch and contact a skin care professional.
Battery Replacement
•
Leave battery replacement up to your original retailer or authorized CASIO service
center.
•
Have the battery replaced only with the type specified in the User’s Guide. Use of a
different battery type can cause malfunction.
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Low Battery Power
•
Low battery power is indicated by large timekeeping error, by dim display contents,
or by a blank display.
•
Operation while battery power is low can result in malfunction. Replace the battery
as soon as possible.
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•
When replacing the battery, also request a check for proper water resistance.
•
Ornamental resin components may become worn, cracked, or bent over time when
subjected to normal daily use. Note that if cracking or any other abnormality
indicating possible damage is noticed in a watch submitted for battery replacement,
your watch will be returned with an explanation of the abnormality, without the
requested servicing being performed.
Initial Battery
•
The battery that comes loaded in your watch when you purchase it is used for
function and performance testing at the factory.
•
The test battery may go dead quicker than the normally rated battery life as noted in
the User’s Guide. Note that you will be charged for replacement of this battery, even
if replacement is required within your watch’s warranty period.
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