MA1903-EA
© 2019 CASIO COMPUTER CO., LTD.
Operation Guide 5607
ENGLISH
Congratulations upon your selection of this CASIO watch.
To ensure that this watch provides you with the years of service for which it is
designed, carefully read and follow the instructions in this manual, especially the
information under “Operating Precautions” and “User Maintenance”.
E
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-12) to
configure your Home City and daylight saving time settings.
Important!
x 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.
x See “Adjusting the Digital Time and Date Settings” (page E-15).
The watch is now ready for use.
E-2
To specify standard time or daylight saving time (DST) for a city ................. E-20
Using the Alarm ................................................................................................ E-21
To enter the Alarm Mode .............................................................................. E-21
To set an alarm time .....................................................................................E-22
To test the alarm ........................................................................................... E-23
To turn an alarm and the Hourly Time Signal on and off ............................... E-23
To stop the alarm .......................................................................................... E-24
Using the Stopwatch ....................................................................................... E-25
To enter the Stopwatch Mode ...................................................................... E-25
To perform an elapsed time operation .......................................................... E-26
To pause at a split time ................................................................................. E-26
To measure two finishes ............................................................................... E-26
Countdown Timer............................................................................................. E-28
To enter the Countdown Timer Mode ........................................................... E-28
To configure the countdown timer ................................................................ E-29
E-4
About This Manual
x 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.
x Button operations are indicated using the letters shown in
the illustration.
x 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.
Contents
About This Manual .............................................................................................E-1
Things to check before using the watch .......................................................... E-2
Mode Reference Guide ...................................................................................... E-6
Timekeeping ..................................................................................................... E-11
Configuring Home City Settings .....................................................................E-12
To configure Home City settings .................................................................. E-12
To change the Daylight Saving Time (summer time) setting ......................... E-14
Adjusting the Digital Time and Date Settings ................................................ E-15
To configure the digital time and date settings ............................................. E-15
Checking the Current Time in a Different Time Zone ...................................E-19
To enter the World Time Mode ..................................................................... E-19
To view the time in another time zone ..........................................................E-19
To perform a countdown timer operation ..................................................... E-30
To stop the alarm .......................................................................................... E-30
Adjusting the Analog Hand Setting ................................................................. E-31
To adjust the analog time ............................................................................. E-31
Illumination ....................................................................................................... E-33
To turn on illumination .................................................................................. E-33
Button Operation Tone .................................................................................... E-34
To turn the button operation tone on and off ................................................ E-34
Troubleshooting ............................................................................................... E-35
Main Indicators ................................................................................................ E-36
Specifications ................................................................................................... E-38
Operating Precautions ..................................................................................... E-40
User Maintenance ............................................................................................ E-51
E-1
E-3
E-5
Mode Reference Guide
The mode you should select depends on what you want to do.
To do this: Enter this mode: See:
x View the current date in the Home City
x Configure Home City and daylight saving time (DST)
settings
x Configure time and date settings
x Select 12-hour or 24-hour timekeeping
x Adjust the analog hands
View the current time in one of 48 cities
(29 time zones) around the globe
Set an alarm time Alarm Mode E-21
Use the stopwatch to measure elapsed time Stopwatch Mode E-25
Use the countdown timer Countdown Timer Mode E-28
Selecting a Mode
x Press C to cycle between the modes as shown below.
Timekeeping Mode World Time Mode
E-8
Timekeeping Mode E-11
World Time Mode E-19
CC
x In any mode (except when a setting mode, with flashing digits is on the display),
press B to illuminate the display.
Stopwatch Mode Countdown Timer Mode Alarm Mode
CC
C
E-7E-6
E-9
Operation Guide 5607
General Functions (All Modes)
The functions and operations described in this section can be used in all of the
modes.
Auto Return Features
If you leave a setting mode with flashing digits on the display for two or three
minutes without performing any operation, the watch exits the setting mode
automatically.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Scrolling
The B and D buttons are used on the setting mode 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.
E-10
Configuring Home City Settings
There are two Home City settings: actually selecting the Home City, and selecting
either standard time or daylight saving time (DST).
To configure Home City settings
1. In the Timekeeping Mode, hold down A for at least
two seconds until the seconds start to flash. This is the
setting mode.
x The watch will exit the setting mode automatically if
you do not perform any operation for about two or
Seconds
E-12
To change the Daylight Saving Time (summer time) setting
DST indicator
three minutes.
1. In the Timekeeping Mode, hold down A for at least
two seconds until the seconds start to flash. This is the
setting mode.
2. Press C to display the DST setting mode.
3. Press D to toggle between Daylight Saving Time (ON)
and Standard Time (OFF).
4. After the setting is the way you want, press A to
return to the Timekeeping Mode.
x The DST indicator appears to indicate that Daylight
Saving Time is turned on.
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
x Each press of D toggles the digital display between the two formats shown
nearby.
Hour PM indicatorMinutes
D
Month-Day Hour : Minutes
Note
x After you specify a city code, the watch will use UTC* offsets in the World Time
Mode to calculate the current time for other time zones based on the current time
in your Home City.
* Coordinated Universal Time, the world-wide scientific standard of timekeeping.
The reference point for UTC is Greenwich, England.
Day of the week Seconds
2. Press C twice to move the flashing to the city code.
x For details about city codes, see the “City Code
Table” at the back of this manual.
3. Press D (East) and B (West) to select the city code
you want to use as your Home City.
4. After the setting is the way you want, press A to
City Code
return to the Timekeeping Mode.
Adjusting the Digital Time and Date Settings
Use the procedure below to adjust the digital time and date settings.
To configure the digital time and date settings
Seconds
1. In the Timekeeping Mode, hold down A for at least
two seconds until the seconds start to flash. This is the
setting mode.
E-11
E-13
E-14
2. Press C to move the flashing in the sequence shown below to select the other
settings.
Seconds
C
Day
C
Month
C
DST
C
Home City Code
Year
C
12/24-Hour FormatCMinute
C
Time and Date
C
Hour
C
x The following steps explain how to configure timekeeping settings only.
E-16
Note
x For information about selecting a Home City and configuring the DST setting, see
“Configuring Home City Settings” (page E-12).
x While 12-hour format is selected for timekeeping, a PM indicator will appear for
times from noon to 11:59 p.m. No indicator appears for times from midnight to
11:59 a.m. With 24-hour format, time is displayed from 0:00 to 23:59, without any
PM indicator.
x The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to
change it except after you have the watch’s battery replaced.
x The day of the week changes automatically when the date changes.
E-18
3. When the timekeeping setting you want to change is flashing, use D and/or B
to change it as described below.
Screen To do this: Do this:
Reset the seconds to 00
Toggle between Daylight Saving Time
(ON) and Standard Time (OFF)
Change the city code
Change the hour or minute
Toggle between 12-hour (12H) and
24-hour (24H) timekeeping
Change the year, month, or day
Press D.
Press D.
Use D (East) and B (West).
Use D (+) and B (–).
Press D.
Use D (+) and B (–).
4. Press A to exit the setting mode.
Checking the Current Time in a Different Time Zone
Currently selected
World Time City
Current time in the currently
selected World Time City
You can use the World Time Mode to view the current
time in one of 29 time zones (48 cities) around the globe.
The city that is currently selected in the World Time
Mode is called the “World Time City”.
To enter the World Time Mode
Use C to select the World Time Mode as shown on
page E-8.
To view the time in another time zone
In the World Time Mode, use D (East) to scroll through
city codes.
E-15
E-17
E-19
Operation Guide 5607
To specify standard time or daylight saving time (DST) for a city
DST indicator
x You cannot use the World Time Mode to change the DST setting of the city
currently selected as your Home City in the Timekeeping Mode.
x Note that you cannot switch between standard time/daylight saving time (DST)
while UTC is selected as the World Time City.
x The standard time/daylight saving time (DST) setting affects only the currently
selected time zone. Other time zones are not affected.
E-20
To set an alarm time
Alarm on indicator
2. Hold down A for at least two seconds until the alarm time starts to flash. This is
the setting mode.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
x When setting the alarm time using the 12-hour format, take care to set the time
correctly as a.m. (no indicator) or p.m. (PM indicator).
E-22
To stop the alarm
Press any button.
NOTE
x In the case of the snooze alarm, the alert operation is performed a total of seven
times, every five minutes, until you turn the alarm off.
x 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
− Displaying the snooze alarm setting screen
1. In the World Time Mode, use D (East) to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down A for at least two seconds.
x This toggles the city code you selected in step1
between Daylight Saving Time (DST indicator
displayed) and standard time (DST indicator not
displayed).
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
DDDDD
AL1 AL3 SNZAL2 AL4 SIG
D
Using the Alarm
Alarm number
Alarm time
(Hour : Minutes)
5. Press A to exit the setting mode.
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
To turn an alarm and the Hourly Time Signal on and off
Snooze alarm on indicator
Hourly time signal on
indicator
When an alarm is turned on, the alarm tone will sound
when its alarm time is reached. One of the alarms is a
snooze alarm, while the other four are daily alarms. The
snooze alarm operation will repeat every five minutes,
up to seven times. You also can turn on an Hourly Time
Signal that causes the watch to beep twice every hour
on the hour.
To enter the Alarm Mode
Use C to select the Alarm Mode as shown on page
E-9.
x The snooze alarm screen is indicated by SNZ, while the
other alarm screens are numbered AL1 through AL4.
The Hourly Time Signal screen is indicated by SIG.
In the Alarm Mode, use D to select an alarm or the
Hourly Time Signal.
x When the alarm you want or the Hourly Time Signal
is displayed, press A to toggle it between on (“On”
displayed) and off (“OFF” displayed).
x The alarm on indicator (when any alarm is on), snooze
alarm on indicator (when the snooze alarm is on), and
the Hourly Time Signal on indicator (when the Hourly
Time Signal is on) are shown on the display in all modes.
Using the Stopwatch
The stopwatch measures elapsed time, split times, and two finishes.
1/100 Seconds
Seconds
To enter the Stopwatch Mode
Use C to select the Stopwatch Mode as shown on page
E-9.
E-21
E-23
E-24
To perform an elapsed time operation
D
Start Stop (Restart) (Stop) Reset
To pause at a split time
D
Start Split
To measure two finishes
D A D A A
Start Split
E-26
D D D A
A A D A
(SPL displayed)
(SPL displayed)
First runner finishes.
Display time of first
runner.
Split release Stop Reset
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
Countdown Timer
Hours
Seconds
Minutes
The countdown timer can be set within a range of
one minute to 24hours. An alarm sounds when the
countdown reaches zero.
To enter the Countdown Timer Mode
Use C to select the Countdown Timer Mode as shown
on page E-9.
SplitHours
Minutes
Note
x The Stopwatch Mode can indicate elapsed time up to 23hours, 59minutes,
59.99seconds.
x Once started, stopwatch timing continues until you press D to stop it, even if
you exit the Stopwatch Mode to another mode and even if timing reaches the
stopwatch limit defined above.
x Exiting the Stopwatch Mode while a split time is frozen on the display clears the
split time and returns to elapsed time measurement.
To configure the countdown timer
1. While the countdown start time is on the display in
the Countdown Timer Mode, hold down A until the
current countdown start time starts to flash, which
indicates the setting mode.
x If the countdown start time is not displayed, use the
procedure under “To perform a countdown timer
operation” (page E-30) to display it.
2. Press C to move the flashing in the sequence shown
below to select other settings.
Start Time (hours) Start Time (minutes)
C
E-25
E-27
E-28
E-29
Operation Guide 5607
3. Use D (+) and B (–) to change the hours and minutes settings.
x To count down from 24hours, set a start time of 0:00.
4. Press A to exit the setting mode.
To perform a countdown timer operation
D
Start Stop (Restart) (Stop) Reset
x Before starting a countdown timer operation, check to make sure that a
countdown operation is not in progress (indicated by the seconds counting down).
If it is, press D to stop it and then A to reset to the countdown start time.
To stop the alarm
Press any button.
E-30
x If you need to advance the analog time setting a long way, hold down D until
the time starts advancing at high speed, and then press B. This locks the highspeed hand movement, so you can release the two buttons. High-speed hand
movement continues until you press any button. It will also stop automatically
after the time advances 12hours or if an alarm (daily alarm, Hourly Time Signal,
or countdown beeper) starts to sound.
3. Press A to exit the setting mode.
x The watch will automatically adjust the minute hand slightly to match its internal
second count when you exit the setting mode.
E-32
D D D A
Button Operation Tone
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.
x Even if you turn off the button operation tone, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
Mute indicator
To turn the button operation tone on and off
Hold down C until the button operation tone sounds (about 3seconds).
x This will toggle the button operation tone either ON or OFF.
x The mute indicator is displayed while the button operation tone is turned off
(muted).
x The mute indicator is displayed in all modes when the button operation tone is
turned off.
E-34
Adjusting the Analog Hand Setting
Use the following procedure to adjust the analog hands so their settings match the
digital time.
To adjust the analog time
1. In the Timekeeping Mode, hold down D for at least
three seconds until the current time start to flash. This
is the analog setting mode.
2. Press D to advance the analog time setting by
20seconds.
x Holding down D advances the analog time setting
at high speed.
E-31
Illumination
The face of the watch is illuminated for easy reading in
the dark.
To turn on illumination
In any mode (except when a setting mode, with flashing
digits is on the display), press B to illuminate the display.
Illumination Precautions
x Illumination may be hard to see when viewed under
direct sunlight.
x Illumination turns off automatically whenever an alarm
sounds.
x Frequent use of illumination runs down the battery.
E-33
Troubleshooting
Time Setting
■ The current time setting is off by hours.
Your Home City setting may be wrong (page E-12). Check your Home City setting
and correct it, if necessary.
■ The current time setting is off by one hour.
You may need to change your Home City’s standard time/daylight saving time
(DST) setting. Use the procedure under “Adjusting the Digital Time and Date
Settings” (page E-15) to change the standard time/daylight saving time (DST)
setting.
World Time Mode
■ The time for my World Time City is off in the World Time Mode.
This could be due to incorrect switching between standard time and daylight saving
time. See “To specify standard time or daylight saving time (DST) for a city” (page
E-20) for more information.
E-35
Main Indicators
15342
678
E-36
Number Name See
PM indicator E-11
1
DST indicator E-14, E-20
2
Split indicator E-25
3
Snooze alarm on indicator E-23
4
Alarm on indicator E-22
5
Graphic indicator
6
Hourly time signal on indicator E-23
7
Mute indicator E-34
8
–
Specifications
Accuracy at normal temperature: ±30 seconds a month
Digital Timekeeping: Hour, minutes, seconds, p.m. (PM), month, day, day of the
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 48 city codes);
Standard Time/Daylight Saving Time (summer time)
Analog Timekeeping: Hour, minutes (hand moves every 20seconds)
World Time: 48 cities (29 time zones) and Coordinated Universal Time (UTC)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (with one snooze alarm); Hourly time signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, two finishes
E-38
week
66 Graphic indicator
Mode Indicator Meaning
Timekeeping
World Time
Alarm
Countdown Timer Timer seconds
Stopwatch Elapsed 1/10 seconds
Countdown Timer:
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments)
Illumination: LED (light-emitting diode)
Battery: Two silver oxide batteries (Type: SR726W)
Approximately 2 years on type SR726W (assuming alarm operation 20seconds
per day and one illumination operation 1.5seconds per day)
Frequent use of illumination runs down the battery.
Specifications are subject to change without notice.
Current second
E-37
E-39
Operation Guide 5607
Operating Precautions
Water Resistance
x 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
Skin diving No No Yes Yes
x
Do not use your watch for scuba diving or other types of diving that requires air tanks.
E-40
x 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.
x 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.
x 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.
x Your water-resistant watch has been tested in accordance with International
Organization for Standardization regulations.
E-42
Temperature
x 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.
x 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
x 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.)
Resistance
Under Daily
Use
Enhanced Water Resistance Under
Daily Use
5
Atmospheres
No
BAR mark
5BAR 10BAR 20BAR
No Yes Yes Yes
10
Atmospheres
20
Atmospheres
OPUM-E
x 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.
x 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.
x After submersion in seawater, use plain water to rinse all salt and dirt from your
watch.
x To maintain water resistance, have the gaskets of your watch replaced periodically
(about once every two or three years).
Band
x 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.
x 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.
x 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).
Magnetism
x The hands of analog and combination (analog-digital) watches are moved by a
motor that uses magnetic force. When such a watch is close to a device (audio
speakers, magnetic necklace, cell phone, etc.) that emits strong magnetism, the
magnetism can cause timekeeping to slow down, speed up, or stop, resulting in the
incorrect time being displayed.
x Very strong magnetism (from medical equipment, etc.) should be avoided because
it can cause malfunction of your watch and damage to electronic components.
Electrostatic Charge
x Exposure to very strong electrostatic charge can cause your watch to display
the wrong time. Very strong electrostatic charge even can damage electronic
components.
x Electrostatic charge can cause the display to go blank momentarily or cause a
rainbow effect on the display.
E-41
E-43
E-44
Chemicals
x 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.
Storage
x 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
x 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.
E-46
Leather Band
x 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.
x 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: Exposing a leather band to rubbing or dirt can cause color transfer and
discoloration.
Metal Components
x 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.
E-48
x 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.
x Friction caused by certain conditions (strong external force, sustained rubbing,
impact, etc.) can cause discoloration of painted components.
x If there are printed figures on the band, strong rubbing of the printed area can
cause discoloration.
x 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.
x Semi-transparent resin parts can become discolored due to sweat and dirt, and if
exposed to high temperatures and humidity for long periods.
x 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.
x 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.
Bacteria and Odor Resistant Band
x 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
x Display figures may be difficult to read when viewed from an angle.
E-45
E-47
E-49
Operation Guide 5607
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.
E-50
x Clean water and sweat from a leather band by wiping with a soft cloth.
x 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
x 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.
x 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.
E-52
Battery Replacement
x Leave battery replacement up to your original retailer or authorized CASIO service
center.
x Have the batteries replaced only with the type specified in the User’s Guide. Use of
a different battery type can cause malfunction.
x When replacing the batteries, also request a check for proper water resistance.
x 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 Batteries
x The batteries that come loaded in your watch when you purchase it are used for
function and performance testing at the factory.
x Test batteries 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 these batteries,
even if replacement is required within your watch’s warranty period.
E-54
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.
x Whenever your watch is exposed to sea water or mud, rinse it off with clean fresh
water.
x 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.
x 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.
x 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
x 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
x 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.
Low Battery Power
x Low battery power is indicated by large timekeeping error, by dim display contents,
or by a blank display.
x Operation while battery power is low can result in malfunction. Replace the
batteries as soon as possible.
E-51
E-53
E-55
City Code Table
L
City
Code
MOW Moscow
L-2
City
JED Jeddah
THR Tehran +3.5
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
SIN Singapore
HKG Hong Kong
BJS Beijing
TPE Taipei
UTC Offset/
GMT Differential
City Code Table
City
Code
City
+3
Code
+8
City
SEL Seoul
TYO Tokyo
ADL Adelaide +9.5
GUM Guam
SYD Sydney
NOU Noumea +11
WLG Wellington +12
x
This table shows the city codes of this
watch (As of July 2018).
x
The rules governing global times
(UTC offset and GMT differential) and
summer time are determined by each
individual country.
UTC Offset/
GMT Differential
+9
+10
City
PPG Pago Pago –11
HNL Honolulu –10
ANC Anchorage –9
YVR Vancouver
LAX Los Angeles
YEA Edmonton
DEN Denver
MEX Mexico City
CHI Chicago
MIA Miami
NYC New York
SCL Santiago
YHZ Halifax
UTC Offset/
GMT Differential
–8
–7
–6
–5YTO Toronto
–4
CASIO COMPUTER CO., LTD.
6-2, Hon-machi 1-chome
Shibuya-ku, Tokyo 151-8543, Japan
City
Code
YYT St. John’s –3.5
RIO Rio De Janeiro –3
RAI Praia –1
UTC
LON London
MAD Madrid
PAR Paris
ROM Rome
BER Berlin
STO Stockholm
ATH Athens
JRS Jerusalem
City
UTC Offset/
GMT Differential
0LIS Lisbon
+1
+2CAI Cairo
L-1
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