Casio Oceanus OCW-G2000S-1A User manual

Contents
Basic Operations
Watch Face Items
Navigating Between Modes
Mode Overview
Using the Crown
Hand and Day Indicator Movement
Solar Charging
Auto Time Adjustment
Checking the Last Time Adjustment Method
Used
Using the Watch in a Medical Facility or
Aircraft
Time Adjustment (GPS, Time
Calibration Signal)
Time Adjustment Using GPS
Appropriate Signal Reception Location
Acquiring GPS Position Information
Manually
Acquiring GPS Time Information Manually
Receiving a Time Information
Automatically
Leap Second Reception
Time Adjustment Using a Time Calibration
Signal
Appropriate Signal Reception Location
Time Calibration Signal Reception
Ranges
Auto Time Calibration Signal Receive
Signal Reception Precautions
MA1709-EB © 2017 CASIO COMPUTER CO., LTD.
Using Mobile Link with a Mobile
Phone
Getting Ready
A Install the required app on your phone.
B Configure Bluetooth settings.
C Pair the watch with a phone.
Auto Time Adjustment
Configuring World Time Settings
Adjusting Hand and Day Indicator Alignment
Configuring Watch Settings
Changing the Home City Summer Time Setting
Checking the Watch Charge Level
Connection
Connecting with a Phone
Disconnecting from a Phone
Unpairing
If you purchase another phone
Adjusting Time Settings
Manually
Setting a Home Time City
Changing Your Home City Time Setting in 15-
minute Steps
Adjusting the Time and Day Setting
Checking the Current Home City
World Time
Specifying a World Time City
Changing the World Time Setting in 15-minute
Steps
Swapping Your Home City Time and World
Time
Stopwatch
Measuring Elapsed Time
Adjusting Hand and Day Indicator
Alignment
Adjusting Hand and Day Indicator Alignment
Moving to Another Time Zone
Other Information
City List
Summer Time Table
Map Data Source
Supported Phone Models
Specifications
Mobile Link Precautions
Copyrights and Registered Copyrights
Troubleshooting
Operation Guide 5501
1

Basic Operations
This section provides an overview of the watch
and its operations.
Note
●The illustrations included in this
operation guide have been created
to facilitate explanation. An
illustration may differ somewhat
from the item it represents.
Watch Face Items
⑥
⑧
⑨
⑦
②
①③
④
⑤
ADay of week
In the Timekeeping Mode, the day of the week
hand indicates the day of the week in the
current Home City.
BAirplane Mode mark
While the watch is in the Airplane Mode, the
day of the week hand points to h.
CSummer time setting
The day of the week hand points to the
summer time setting for the current Home City.
DSignal receive status, location information
availability
When checking the last receive result :
The day of the week hand indicates the
information that was received or acquired for
the last time adjustment.
“P”: GPS signal time or phone time information
and location information
“N”: GPS signal time information or time
calibration signal
When setting the Home City or World Time
City :
The day of the week hand indicates whether
or not location information is available for the
Home City or World Time City.
“P”: Location information available
“N”: Location information not available
ELast signal receive result
The second hand points to the letter that
indicates the result of the last time adjustment
operation by receipt of a signal or connection
with a phone.
“Y(YES)”: Last time adjustment operation
successful.
“N(NO)”: Last time adjustment operation
failed.
FRC mark
The second hand points to this mark while
calibration signal reception is in progress.
GT+P mark
The second hand points to this mark while
GPS (location information) signal reception is
in progress.
HT (Time) mark
The second hand points to this mark while
GPS (time information) signal reception is in
progress.
IC mark
The second hand points to this mark while
there is a connection between the watch and
a phone.
Navigating Between Modes
Your watch has the modes shown below.
CC
C
30
30
Bluetooth connection
(Approximately
2.5 seconds)
Stopwatch Mode
Timekeeping Mode
Use the (C) button to navigate between
modes.
To connect with a phone, hold down (C) for
about 2.5 seconds.
Mode Overview
●Timekeeping Mode
The main hour, minute, and second hands
indicate the current time.
The small hour and minute hands indicate the
current World Time.
30
③④ ⑤⑥⑦②
①
Current location time /
World Time swapping
(Hold down about
3 seconds.)
ACurrent location time (24-hour time)
One revolution every 24 hours.
BCurrent day of the week
CWorld Time hour (24-hour time)
The hand points to the A-side for a.m. times,
and to the P-side for p.m. times.
DWorld Time hour
EWorld Time minute
FCurrent location date
GWorld Time City
●Stopwatch Mode
The main hour and minute hands indicate the
current time.
The second hand, and the small hour and
minute hands indicate the elapsed stopwatch
time.
30
③④ ⑤
①②
Start/
Stop
Reset
ACurrent location time (24-hour time)
One revolution every 24 hours.
BStopwatch seconds
CStopwatch hours (24-hour time)
The hand points to the A-side for hours 0
through 12, and to the P-side for hours 12
through 24.
DStopwatch hours
EStopwatch minutes
Operation Guide 5501
2

Using the Crown
Depending on the operation you want to
perform, pull out the crown to the first or
second click and then rotate it.
Second click
First click
Normal timekeeping
Crown
Important!
●To prevent loss of water resistance
and/or damage due to impact, be
sure to push the crown in to its
normal position after you are
finished using it.
●When pushing the crown back in,
take care not to apply too much
force.
●Fast Forward/Fast Reverse
After pulling out the crown to the first or second
click, rotating it quickly in succession in either
direction will start a fast forward or fast reverse
operation. While a fast forward operation is in
progress, quickly rotating the crown in
succession again will increase the speed even
further.
●The fast reverse operation speed is fixed
and cannot be changed.
●Stopping Fast Forward/Fast Reverse
Rotate the crown in the direction opposite that
of the ongoing operation or press any button.
Note
●If you do not perform any operation
for about two minutes after pulling
out the crown, crown operations will
automatically become disabled. If
that happens, push the crown back
in and then pull it out again.
Hand and Day Indicator
Movement
30
Day indicator
Day of the week hand
●Day of the Week and Day Indicator
Operation
Changing the day setting of the watch will also
cause the day of the week hand to move in
conjunction with the day.
●Day
●It can take anywhere from about 10 to 40
seconds for the day indicator to change after
timekeeping reaches midnight. The day of
the week hand will move as the day indicator
changes.
●The day may not be indicated correctly while
the watch’s crown is pulled out.
Solar Charging
This watch runs on power supplied from a
rechargeable (secondary) battery that is
charged by a solar panel. The solar panel is
integrated into the face of the watch, and
power is generated whenever the face is
exposed to light.
●Charging the Watch
When you are not wearing the watch, put it in
a location where it is exposed to bright light.
While you are wearing the watch, make sure
that its face (solar panel) is not blocked from
the light by the sleeve of your clothing. Power
generation efficiency is reduced even when
the face of the watch is blocked only partially.
NOYES
Important!
●Depending on light intensity and
local conditions, the watch may
become hot to the touch when
exposed to light for charging. Take
care to avoid burn injury after
charging. Also, avoid charging the
watch under high-temperature
conditions like the ones described
below.
ーOn the dashboard of a vehicle
parked in the sun
ーNear an incandescent light bulb or
other source of heat
ーUnder direct sunlight or in other
hot areas for long periods
●Checking the Charge Level
1. Enter the Timekeeping Mode.
lNavigating Between Modes
2. Press (B).
This will cause the disk to show the current
charge level.
H: Good (high)
M: Good (medium)
L: Insufficient (low)
30
Disk
3. Press (B) or do not perform any operation
for one or two seconds to return to the
current time.
●Remaining Charge and Dead Battery
You can determine if the charge level is low by
checking the hand movement. Functions
become disabled as battery power goes low.
Important!
●Should battery go low or go dead,
expose the face (solar panel) to light
as soon as possible.
Note
●Exposing the watch face to light after
the battery goes dead will cause the
second hand to revolve
counterclockwise until it stops at
second 57. This indicates charging
has started.
Operation Guide 5501
3

Low Battery Power
The second hand jumps at two-second
intervals.
30
Second hand
Dead Battery
All hands and the day indicator are stopped.
1
●Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Required Charging Time for 1-day Use
Light Intensity Approximate Charging Time
High
p
Low
A8 minutes
B30 minutes
C48 minutes
D8 hours
Time Required to Achieve Next Charge
Level
Light Intensity
Approximate Charging Time
Charge Level
1
Charge Level
2
High
p
Low
A3 hours 31 hours
B7 hours 115 hours
C11 hours 186 hours
D123 hours -
Charge Level 1 :
Time from dead battery until hand movement
starts
Charge Level 2 :
Time from hand movement starts until a full
charge
Light Intensity
ASunny day, outdoors (50,000 lux)
BSunny day, near a window (10,000 lux)
COvercast day, near a window (5,000 lux)
DIndoor fluorescent lighting (500 lux)
Note
●Actual charging time depends on the
local charging environment.
●Power Saving
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and 6
a.m. will cause the second hand to stop, and
the watch will enter Level 1 power saving. If
the watch is left in this condition for six or
seven days, all hands will stop and the watch
will enter Level 2 power saving.
Level 1 :
Basic timekeeping functions are operational.
Level 2 :
Only the day indicator is operational.
Note
●Note that the watch also may enter
the power saving state if its face is
blocked from light by your sleeve
while you are wearing it.
●The watch will enter power saving
from the Timekeeping Mode only.
●Recovering from Power Saving
Operation
Press any button or place the watch in a well-
lit area to recover from power saving.
Auto Time Adjustment
Your watch can receive time calibration
signals and connect with a phone to obtain
information that it uses to adjust its date and
time setting.
●First Use of the Watch
Immediately after purchasing the watch, it will
acquire GPS location information and
configure a Home City based on your current
location.
lAcquiring GPS Position Information
Manually
GPS signal (location information)
●Normal Use of the Watch
Your watch automatically receives a time
calibration signal or GPS signal (time
information) regularly each day and adjusts its
time setting. This means its time setting is
always accurate without the need for any
adjustment by you.
lReceiving a Time Information
Automatically
lAuto Time Calibration Signal Receive
Time calibration signal
GPS signal (time information)
Note
●If the watch is unable to adjust its
time setting automatically for some
reason, you can trigger a GPS signal
receive operation manually.
lAcquiring GPS Time Information
Manually
lAcquiring GPS Position Information
Manually
Using a Phone to Adjust the Watch’s Time
You can pair the watch with a phone to have
the watch adjust its time setting in accordance
with the phone time.
lAuto Time Adjustment
12:30
●If the watch is not showing the correct
time...
If the watch does not indicate the correct time
even after it receives a signal or connects with
the phone, correct the hand and date indicator
positions.
lUsing OCEANUS Connected to Correct
Hand Positions
lUsing Watch Operations to Correct Hand
Positions
Operation Guide 5501
4

Checking the Last Time
Adjustment Method Used
1. Enter the Timekeeping Mode.
lNavigating Between Modes
30
2. Press (B).
The second hand will indicate the last time
adjustment operation result. The watch
hands will return to indicating the current
time if you do not perform any operation
for nine or ten seconds.
“Y(YES)”: Last time adjustment operation
successful.
“N(NO)”: Last time adjustment operation
failed.
The day of the week hand indicates
details about the receive (acquisition)
operation.
“P”: Time information and location
information (GPS signal), connection with
a phone
“N”: Time information (GPS signal) or time
calibration signal
30
Day of the week hand
Second hand
Note
●Even if there was a successful
receive operation, the second hand
will point to “N(NO)” if you adjusted
the time setting manually.
●If you do not perform any watch
operation for about one or two
seconds after location information is
acquired, or after the watch
establishes a connection with a
phone and synchronizes its time
setting, the watch will show the
acquired Home City’s time zone.
30
Home City
Time zone
Using the Watch in a Medical
Facility or Aircraft
Whenever you are in a hospital, on an aircraft,
or in any other location where auto signal
receive or connection with a phone may cause
problems, you can perform the procedure
below to disable it (Airplane Mode). To re-
enable auto time adjustment, perform the
same operation again.
1. Enter the Timekeeping Mode.
lNavigating Between Modes
30
2. Press (B).
The second hand will indicate the last
receive result for nine or ten seconds. If
location information was received, the
second hand will indicate the Home City
time zone after indicating the receive
result.
30
3. Within 10 seconds after pressing (B)
above, pull out the crown to the first click.
●If more than 10 seconds elapse before
you pull out the crown after you press
(B), the second hand will return to
indicating seconds. If this happens,
press (B) again.
4. Rotate the crown to enter the Airplane
Mode.
N(NO): Airplane Mode enabled
Y(YES): Airplane Mode disabled
30
Crown
5. Push the crown back in.
●When the watch is in the Airplane Mode,
the day of the week hand points to h.
30
Time Adjustment (GPS,
Time Calibration
Signal)
The watch’s time, day, and Home City settings
can be configured in accordance with a
received GPS signal or time calibration signal.
●GPS signal (location information): Used to
update Home City, time, and day settings.
●GPS signal time information: Used to
update time and day settings.
●Time calibration signal: Used to update time
and day settings.
Important!
●Before trying to receive GPS signal
time information and/or a time
calibration signal, first use GPS to
acquire location information and
configure Home Time settings.
●The watch will normally not perform
auto signal receive while it is paired
with a phone. However, auto receive
will be performed if there is no
connection between the watch and
phone for more than one day.
●Put the watch into the Airplane Mode
whenever you are inside an aircraft
or in any other area where radio
wave reception is prohibited or
restricted.
lUsing the Watch in a Medical
Facility or Aircraft
Note
●Areas where time calibration signal
reception is supported are limited.
When the watch in an area where
time calibration signal reception is
not supported, adjust time and day
settings based on GPS signals.
lTime Calibration Signal Reception
Ranges
●If the watch does not indicate the
correct time even after it receives a
signal, correct the hand and date
indicator positions.
lUsing OCEANUS Connected to
Correct Hand Positions
lUsing Watch Operations to Correct
Hand Positions
Operation Guide 5501
5

Time Adjustment Using GPS
Appropriate Signal Reception
Location
GPS signal reception is possible outdoors
where the sky is visible and not blocked by
buildings, trees, or other objects.
Note
●In areas where reception is poor,
keep the watch face oriented
upwards and do not move the watch.
●When the watch is set up for auto
receive, take care to avoid covering
the watch face with the sleeve of
your clothing.
●GPS signal reception is not possible
in the areas described below.
ーWhere the sky is not visible
ーIndoors (Reception may be
possible near a window.)
ーNear wireless communication
equipment or other devices that
generate magnetism.
●You may experience GPS signal
reception problems in the areas
described below.
ーWhere the view of the sky above
is narrow
ーNear trees or buildings
ーNear a train station, airport, or
other congested areas
Acquiring GPS Position Information
Manually
You can use a button operation to acquire
GPS location information and adjust your
Home City, time, and day settings in
accordance with your current location.
Note
●GPS signal reception requires large
amounts of power. Perform it only
when necessary.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
1. Move to a location appropriate for signal
reception and orient the watch so its
display is pointed straight up at the sky.
2. Hold down (B) for at least 1.5 seconds.
Release the button as soon as the second
hand points to “T(TIME)”.
●The second hand will move in the
following sequence: “Y(YES)” or
“N(NO)” n “T(TIME)”.
3. Press (B).
This will cause the second hand to move
to “T+P”, indicating that location
information acquisition has started. The
position of the second hand during
reception will depend on the current
reception conditions.
30
Poor reception
Good reception
Second hand
●If location information acquisition is
successful, the second hand will move
to “Y(YES)” and then the watch will
automatically adjust its time and day
settings. The watch will display the
acquired Home City and its time zone
for about three seconds.
30
Home City
Time zone
●If position information acquisition fails
for some reason, the second hand will
move to “N(NO)” and then the watch will
indicate the current time and day
without adjusting them.
Note
●Reception takes anywhere from
about 30 to 80 seconds.
●It can take as long as 13 minutes
when leap second information is
included.
●You may experience location
information acquisition problems
when you are in the vicinity of a city
borderline.
The watch’s time and day will not be
indicated correctly if the Home City
setting is not right for your location.
If this happens, move to a location
near the center of the city you want
to set as your Home City and
acquired location information again.
Or you can perform a time
information receive operation to
adjust time and day settings after
configuring Home City and summer
time settings manually.
lSetting a Home Time City
lAcquiring GPS Time Information
Manually
Acquiring GPS Time Information
Manually
You can use a button operation on the watch
to receive GPS signal time information. When
the receive operation is successful, the
watch’s Home City, day, and time settings will
be adjusted accordingly.
Note
●GPS signal reception requires large
amounts of power. Perform it only
when necessary.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
1. Move to a location appropriate for signal
reception and orient the watch so its
display is pointed straight up at the sky.
Operation Guide 5501
6

2. Hold down (B) for at least 1.5 seconds.
Release the button as soon as the second
hand points to “T(TIME)”.
●The second hand will move in the
following sequence: “Y(YES)” or
“N(NO)” n “T(TIME)”.
●This indicates that time information
receipt has started.
30
Second hand
●If information acquisition is successful,
the second hand will move to “Y(YES)”,
and then the watch will automatically
adjust its time and day settings.
30
●If reception fails for some reason, the
second hand will move to “N(NO)” and
then the watch will indicate the current
time and day without adjusting them.
Note
●Receive takes anywhere from about
six to 60 seconds.
●It can take as long as 13 minutes
when leap second information is
included.
Receiving a Time Information
Automatically
When the conditions below are satisfied, the
watch will automatically receive time
information from a GPS signal. If any time
information receive is successful, the watch
will no longer attempt to receive a signal for
the rest of the day.
●In the Timekeeping Mode
●Current time is between 6:00 a.m. and 10:00
p.m.
●Light (near a window on a clear day)
continually shining on the face of the watch
for about one to two minutes.
●Time calibration signal reception was not
successful during the previous evening.
Note
●The time information receive
operation takes anywhere from
about six to 60 seconds.
●The receive operation can take as
long as 13 minutes when leap
second information is included.
Leap Second Reception
GPS signal reception each year on June 1 or
later and on December 1 or later also receives
leap second information.
Note
●It can take as long as 13 minutes to
complete leap second information
reception.
●Leap second information receive is
repeated until information receipt is
complete.
●Once leap second information
receive is complete, the watch will
not make any attempt to receive it
again until the following June 1 or
December 1.
●When connecting with a phone to
adjust the watch date and time
settings, leap seconds will also be
received along with the time
information. If this happens, leap
seconds may not be received when
receiving a GPS signal.
Time Adjustment Using a
Time Calibration Signal
Appropriate Signal Reception
Location
A time calibration signal can be received while
the watch is near a window.
●Keep metal objects away from the watch.
●Do not move the watch.
●Do not perform any operation on the watch.
6 o’clock position
Note
●You may experience time calibration
signal reception problems in the
areas described below.
ーAmong or near buildings
ーWhile riding in a vehicle
ーNear household appliances,
office machines, mobile phones,
etc.
ーOn a construction site, in an
airport, or any other location
where radio wave interference
occurs
ーNear high-voltage lines
ーIn mountainous areas or behind a
mountain
Time Calibration Signal Reception
Ranges
Time calibration signal reception is supported
in the areas shown below.
●Japan Time Calibration Signal (JJY)
500 kilometers
500 kilometers
1,000 kilometers
1,000 kilometers To k y o
Fukushima
Fukuoka/
Saga
●
Chinese Time Calibration Signal (BPC)
500 kilometers
1,500 kilometers
Chengdu
Shangqiu
Hong Kong
Shanghai
Beijing
Changchun
●U.S. Time Calibration Signal (WWVB)
600 miles
(1,000 kilometers)
2,000 miles (3,000 kilometers)
Los Angeles
Denver
Fort Collins
Chicago
New York
●U.K. (MSF) and German (DCF77) Time
Calibration Signal
The Anthorn signal is receivable within this area.
500 kilometers
1,500 kilometers
Mainflingen
Anthorn
Note
●Even if you are within the normal
reception range of a time calibration
signal, reception may be made
impossible by the following factors:
geographic contours, weather, the
season, the time of day, wireless
noise.
Operation Guide 5501
7

Auto Time Calibration Signal
Receive
An automatic time calibration signal receive
operation is performed and the time and day
settings are adjusted between midnight and
5:00 a.m. Once a signal receive operation is
successful, no more auto receive operations
are performed that day.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
Place the watch near a window or some other
location appropriate for signal reception.
●The second hand points to “RC” while time
calibration reception in progress.
●When the receive operation is successful,
the time and day settings will be adjusted
automatically.
Note
●Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
Signal Reception
Precautions
●When the watch is unable to adjust its time
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
●Note that an internal decoding process the
watch performs after it receives a signal may
cause the time setting to be slightly off (by
less than one second).
●GPS signal and time calibration signal
reception will not be possible under any of
the watch conditions described below.
ーWhile battery power is low
ーWhile the watch is in the Airplane Mode
or Stopwatch Mode
ーWhen power saving is at Level 2 (GPS
signal reception also is not possible at
Level 1.)
ーWhile the crown is pulled out
●If the receive operation is successful, the
time and day settings will be adjusted
automatically in accordance with the Home
City and summer time settings. Summer
time will not be applied correctly in the cases
described below.
ーWhen the summer time start date and
time, end date and time, or other rules are
changed by authorities
ーWhen location information is received,
but it is not location information for your
actual location (For example, when you
are near a borderline of a city and the
acquired location information is for a
neighboring city, etc.)
●As of January 2017, China does not observe
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
Using Mobile Link with
a Mobile Phone
While there is a Bluetooth connection
between the watch and phone, the watch time
setting is adjusted automatically in
accordance with the phone’s time setting. You
can also change the watch’s time settings.
Note
●This function is available only while
OCEANUS Connected is running on
the phone.
●This section describes watch and
phone operations.
X : Watch operation
Y : Phone operation
Getting Ready
A Install the required app on your
phone.
To use the watch with a phone, first tap one of the
links below and install the “OCEANUS
Connected” app on the phone.
●iOS (iPhone) Users
https://itunes.apple.com/us/app/oceanus-
connected/id1179979492?mt=8
●AndroidTM (GALAXY, etc.) Users
https://play.google.com/store/apps/details?
id=com.casio.premium.oceanus
B Configure Bluetooth settings.
Enable the phone’s Bluetooth.
Note
●For details about setting
procedures, see your phone
documentation.
C Pair the watch with a phone.
Before you can use the watch in combination
with a phone, you first need to pair them.
1. Move the phone to be paired with close to
(within one meter of) the watch.
2. Y On the Home Screen, tap the
“OCEANUS Connected” icon.
3. Y Perform the operation shown on the
screen of the phone to be paired with.
●If a pairing prompt message appears,
perform the operation shown on the
phone screen.
●If pairing fails for some reason, the
second hand will move to “N” and then
return to its normal movement. Perform
the pairing procedure again from the
beginning.
C mark
Auto Time Adjustment
The watch can be set to adjust its time setting
automatically each day in accordance with the
phone time.
●Using Auto Adjust
Your watch adjusts its time setting four times
a day according to a preset schedule. It
performs the adjustment operation
automatically as you go about your daily life,
without any operation required by you.
12:30
Important!
●The watch may not be able to
perform auto time setting
adjustment under the conditions
described below.
ーWhile it is too far away from its
paired phone
ーWhile communication is not
possible due to radio interference,
etc.
ーWhile the phone is updating its
system
Operation Guide 5501
8

Note
●If the watch does not indicate the
correct time even if is able to connect
with a phone, correct the hand and
date indicator positions.
lAdjusting Hand and Day Indicator
Alignment
●If there is a World Time City specified
with OCEANUS Connected, its time
will also be synchronized
automatically.
●The watch will connect with the
phone and perform auto time
adjustment at around 12:30 a.m.,
6:30 a.m., 12:30 p.m., and 6:30 p.m.
The connection is automatically
terminated after auto time
adjustment is complete.
●Triggering Immediate Time Adjustment
The watch will synchronize its time setting to
that of the phone immediately when they are
connected with each other. Whenever you
want to adjust the watch’s time setting based
on your phone's time, perform the procedure
below to connect with a phone.
1. X Hold down (B) for about 0.5 seconds.
Release the button as soon as the second
hand points to “C”.
When the watch connects with a phone,
the second hand will normally move to
“Y(YES)” and then the watch’s time
setting will synchronize with the phone’s
time.
●When the time adjustment is complete,
the disk will show your current Home
City and the second hand will point to
the current time zone.
●If time synchronization fails for some
reason, the second hand will move to
“N(NO)”.
30
Home City
Time zone
Configuring World Time
Settings
Specifying a World Time City with OCEANUS
Connected causes the city’s time to be
indicated by the small hour and minute hands.
Watch settings can be configured for auto
summer time switching for the World Time
City.
30
Note
●OCEANUS Connected World Time
lets you select from among
approximately 300 cities as the
World Time City.
●Selecting a World Time City
1. Y Tap the “OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Perform the operation shown on the
phone screen. The World Time setting will
be reflected on the watch.
●You can determine whether a World
Time is a.m. or p.m. by checking the
position of the small 24-hour hand.
30
World Time hour (24-hour)
World Time hour and minute
●Configuring the Summer Time Setting
1. Y Tap the “OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Perform the operation shown on the
phone screen to configure the summer
time setting.
●“Auto”
The watch switches between standard
time and summer time automatically.
●“OFF”
The watch always indicates standard
time.
●“ON”
The watch always indicates summer
time.
Note
●While the summer time setting is
“Auto”, the watch will switch
between standard time and summer
time automatically. You do not need
to switch between standard time and
summer time manually. Even if you
are in an area that does not observe
summer time, you can leave the
watch’s summer time setting as
“Auto”.
●Changing the time setting manually
with a watch operation will cancel
auto standard time/summer time
switching.
●For information about summer time
periods, refer the “Summer Time
Table” or OCEANUS Connected.
●Swapping Your World Time and Home
Time
1. Y Tap the “OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
Operation Guide 5501
9

3. Y Perform the operation shown on the
phone screen to swap your Home Time
with your World Time.
For example, if your Home City is Tokyo
and the World Time City is New York, they
will be swapped as shown below.
●The second hand will point to the time
zone of the currently selected World
Time City for a few seconds after you
swap times.
30 30
World Time City
(New York)
World Time City
(Tokyo)
Home City (New York)
Home City (Tokyo)
After swappingBefore swapping
Note
●Auto time adjustment does not work
for 24 hours after swapping of the
Home Time and World Time.
Adjusting Hand and Day
Indicator Alignment
If the hands and/or date indicator are out of
alignment even though auto time adjustment
is being performed, use OCEANUS
Connected to adjust them.
1. Y Tap the “OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Perform the operation shown on the
phone screen to correct hand and day
indicator alignment.
Configuring Watch Settings
You can use OCEANUS Connected to specify
the amount of time until the Bluetooth
connection is automatically terminated, and to
configure other settings.
1. Y Tap the “OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Select the setting you want to change
and then perform the operation shown on
the phone screen.
Changing the Home City
Summer Time Setting
1. Y On the Home Screen, tap the
“OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Perform the operation shown on the
phone screen to change your World Time
summer time setting.
Checking the Watch Charge
Level
Use the procedure below to check the current
charge level with OCEANUS Connected.
1. Y On the Home Screen, tap the
“OCEANUS Connected” icon.
2. X Hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
3. Y Use OCEANUS Connected to check the
charge level.
Connection
Connecting with a Phone
This section explains how to establish a
Bluetooth connection between a phone that is
paired with the watch.
●If the watch is not paired with the phone you
want to connect with, perform the procedure
under “C Pair the watch with a phone.” to
pair them.
1. Move the phone close to (within one meter
of) the watch.
2. X While the second hand is not pointing to
“C”, hold down (C) for about 2.5 seconds.
This causes the second hand to move to
“C” and establishes a connection
between the watch and phone.
●The second hand will point to “N” if
connection fails for some reason.
Operation Guide 5501
10

Important!
●If you have problems establishing a
connection, it could mean that
OCEANUS Connected is not
running on the phone. On the
phone’s home screen, tap the
“OCEANUS Connected” icon. After
the app starts up, hold down the
watch’s (C) button for about 2.5
seconds.
Note
●The connection will be terminated if
you do not perform any operation on
the watch or phone for a fixed
amount of time.
To specify the connection limit time,
perform the following operation with
OCEANUS Connected: “Watch
settings”n“Connection time”. Next,
select a setting of 3 minutes, 5
minutes, or 10 minutes.
Disconnecting from a Phone
Pressing any button terminates the Bluetooth
connection and returns the second hand to its
normal operation.
30
30
After disconnectionConnected
Unpairing
1. X If the watch is connected with a phone,
press any button to terminate the
connection.
30
30
After disconnectionConnected
2. Y On the Home Screen, tap the
“OCEANUS Connected” icon.
3. Y Perform the operation shown on the
phone screen to unpair.
Note
●If you are unable to re-pair the watch
with a phone after unpairing them,
use the procedure below to delete
pairing information from the watch
and then perform the pairing
operation again.
A X Pull out the crown to the second
click.
30
Crown
B X Hold down (B) for about 10
seconds.
This deletes the pairing information.
The second hand will point to “C”.
C X Push the crown back in.
If you purchase another phone
You need to perform the pairing operation
whenever you want to establish a Bluetooth
connection with a phone for the first time.
lC Pair the watch with a phone.
Note
●If your previous phone is near the
watch while you are trying to pair with
a new phone, the watch will pair with
the previous phone, which makes it
impossible to pair with the new
phone. If this happens, use the
procedure below to delete the
previous pairing information from the
watch. Also, unregister the watch
from the phone you will no longer
connect with.
A X Pull out the crown to the second
click.
30
Crown
B X Hold down (B) for about 10
seconds.
This deletes the pairing information.
The second hand will point to “C”.
C X Push the crown back in.
Adjusting Time
Settings Manually
You can use the procedure below to adjust the
watch’s time and day settings when GPS and
time calibration signal reception is not
possible, or communication with a phone is
not possible for some reason.
Setting a Home Time City
Use the procedure in this section to select a
city to use as your Home City. If you are in an
area that observes summer time, you can also
enable or disable summer time.
Note
●The initial factory default summer
time setting for all cities is “AT
(AUTO)”. In many cases, the “AT
(AUTO)” setting lets you use the
watch without switching between
summer time and standard time.
●In the cases described below,
receiving GPS position information
will automatically cause “AT
(AUTO)” to be selected for the
summer time setting.
ーWhen the home city of the current
receive operation is different from
the watch’s home city setting prior
to the receive operation.
ーWhen the Home City is
unchanged, but the acquired
location information is for a
geographic area with different
summer time rules (start date, end
date)
Operation Guide 5501
11

1. Pull out the crown to the second click.
This will cause the disk to shows the
current Home City.
●You can find out whether or not location
information about your current Home
City is available by checking the day of
the week hand position.
“P”: Available
“N”: Not available
30
Day of the week hand
Crown
Home City
2. Rotate the crown to change the World
Time City.
●For information about the Home City,
see “City List”.
3. Press (A).
You can find out the current summer time
setting by checking the day of the week
hand position.
30
●“AT (AUTO)”
The watch switches between standard
time and summer time automatically.
●“STD”
The watch always indicates standard
time.
●“DST”
The watch always indicates summer
time.
4. Hold down (A) for about one second to
change the summer time setting.
Each time you hold down (A) for about one
second, the setting will cycle through
options in the sequence shown below.
“AT (AUTO)”n“STD”n“DST”
5. Push the crown back in to its normal
position.
Changing Your Home City
Time Setting in 15-minute
Steps
1. Pull out the crown to the second click.
This will cause the disk to shows the
current Home City.
3030
Home City
Crown
2. Hold down (C) for about one second.
The disk will show l.
30
3. Rotate the crown to change the time and
day settings.
The data setting will change in 15-minute
increments.
30
4. Push the crown back in.
Note
●Changing the time setting with this
operation will cause Home City
location information to be deleted
from the watch.
Adjusting the Time and Day
Setting
1. Pull out the crown to the second click.
This will cause the disk to shows the
current Home City.
3030
Home City
Crown
MinutesHours
2. Hold down (C) for about 10 seconds.
This causes the second hand to move to
12 o’clock, and enables the minute setting
operation.
3. Rotate the crown to change the minute
setting.
4. Press (C).
The hour hand will move slightly,
indicating that the hour setting operation
is enabled.
5. Rotate the crown to change the hour
setting.
6. Press (C).
This changes to the year setting
operation.
80 40
90 30
20
5070
10
60
00
Year (10’s digit)
84
93
2
57
1
6
0
Year (one’s digit)
7. Rotate the crown to move the hour hand
to the desired setting for the year ten’s
digit, and the minute hand to the desired
one’s digit.
8. Press (C).
This changes to the month setting
operation.
84
93
2
57
1
10
11
6
12
Month
9. Rotate the crown to change the month.
Operation Guide 5501
12

10. Press (C).
The day of the week hand will move
slightly, indicating that the day setting
operation is enabled.
30
Day
●Changing the date setting will cause the
day of the week hand to rotate
repeatedly.
lHand and Day Indicator Movement
11. Rotate the crown to change the day.
12. On a time signal at the top of a minute,
push the crown back in.
Note
●If the watch does not indicate the
correct time even after you adjust it,
correct the hand and date indicator
positions.
lUsing OCEANUS Connected to
Correct Hand Positions
lUsing Watch Operations to Correct
Hand Positions
Checking the Current Home
City
Pressing (B) will cause the second hand to
move to a letter that indicates the result of the
last time adjustment operation. After that, it will
move to the time zone of the current Home
City. Also, the disk will show the current Home
City.
●The watch hands will return to indicating the
current time if you do not perform any
operation for nine or ten seconds.
30
Home City
Time zone
World Time
World Time lets you look up the current time
in any one of 39 cities around the globe, and
UTC (Universal Coordinated Time).
30
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
Specifying a World Time City
Use the procedure in this section to select a
World Time city. If you are in an area that
observes summer time, you can also enable
or disable summer time.
Note
●The initial factory default summer
time setting for all cities is “AT
(AUTO)”. In many cases, the “AT
(AUTO)” setting lets you use the
watch without switching between
summer time and standard time.
1. Pull out the crown to the first click.
The second hand will point to the time
zone of the current World Time City.
●You can find out the availability of World
Time location information by checking
the day of the week hand.
“P”: Available
“N”: Not available
30
Crown
Day of the week hand
World Time City
Time zone
2. Rotate the crown to change the World
Time City.
The small hour and minute hands will
indicate the current time in the World Time
city you selected.
30
World Time hour (24-hour)
World Time hour and minute
Crown
●Pressing (A) will cause the day of the
week hand to move to the current
summer time setting.
30
●“AT (AUTO)”
The watch switches between standard
time and summer time automatically.
●“STD”
The watch always indicates standard
time.
●“DST”
The watch always indicates summer
time.
3. Hold down (A) for about one second to
change the summer time setting.
●Each time you hold down (A) for about
one second, the summer time setting
will cycle to the next available option.
4. Push the crown back in.
Note
●You cannot switch between “STD”
and “DST” while “UTC” is selected
as the city.
Operation Guide 5501
13

Changing the World Time
Setting in 15-minute Steps
If the city you want is not available on the
watch, you can use the procedure below to
configure World Time settings.
1. Pull out the crown to the first click.
The second hand will point to the time
zone of the current World Time City.
30
Crown
World Time City
Time zone
2. Hold down (C) for about one second.
The disk will show l.
30
3. Rotate the crown to change the time and
day settings.
The World Time setting change in 15-
minute increments.
30
4. Push the crown back in.
Note
●Changing the World Time setting
with this operation will cause World
Time city location information to be
deleted from the watch.
●This operation cannot be performed
while UTC is selected as the World
Time City.
Swapping Your Home City
Time and World Time
Holding down (A) for about three seconds will
swap your Home City time with your World
Time.
●The second hand will point to the time zone
of the current World Time City for a few
seconds after you swap times.
30
30
After swappingBefore swapping
World Time
World Time
Home Time
Home Time
●If a swapping operation causes a change in
the day indicator setting, the day of the week
hand will rotate repeatedly.
lHand and Day Indicator Movement
Note
●This function comes in handy when
you need to move to another time
zone. For details about how to use it,
see “Moving to Another Time Zone”.
Stopwatch
The stopwatch measures elapsed time in units
of one second up to 23 hours, 59 minutes, 59
seconds (24 hours).
Getting ready
Enter the Stopwatch Mode.
lNavigating Between Modes
30
Measuring Elapsed Time
30
Seconds
HoursMinutes
Hour (24-hour time)
1. Use the operations below to measure
elapsed time.
A
A
A
AStop
Resume
Stop
Start
2. Press (B) to reset the elapsed time to all
zeros.
3. Press (C) to return to the Timekeeping
Mode.
Operation Guide 5501
14

Adjusting Hand and
Day Indicator
Alignment
Strong magnetism or impact can cause the
hands and/or the day indicator to go out of
alignment. If this happens, adjust hand and
day indicator alignment.
●The watch performs alignment of the hour
hand, minute hand, second hand, and 24-
hour hand automatically.
Adjusting Hand and Day
Indicator Alignment
1. Pull out the crown to the second click.
2. Hold down (B) for about five seconds, until
the second hand moves to 12 o’clock.
This will start auto alignment of the hour
hand, minute hand, second hand, and 24-
hour hand.
●After auto alignment is complete, the
hands should be in the positions shown
below.
3030
Crown
Second hand
Minute hand Hour hand
24-hour hand
3. Press (C).
Confirm that the small hour hand and
small minute hand are stopped at 12
o’clock.
3030
Small minute handSmall hour hand
4. If the small hour hand and small minute
hand are not at 12 o’clock, rotate the
crown to align them correctly.
5. Press (C).
Confirm that the disk is positioned so
“UTC” is in the center.
3030
Disk
6. If “UTC” is not positioned in the center of
the disk, rotate the crown until it is.
7. Press (C).
Confirm that the day of the week hand is
stopped at 12 o’clock, and check if the day
is indicated properly.
3030
30
Day (Operation start day)
Day of the week hand
8. If the day of the week hand and or the day
indicator is out of alignment, rotate the
crown to move the day of the week hand
to 12 o’clock and the day to the center of
the indicator window.
●The movement range of the day of the
week hand and day indicator is limited
when you rotate the crown. The
maximum left-right movement of the
day of the week hand is 180 degrees in
either direction. The day indicator
moves only slightly.
●After the day of the week hand and day
indicator are in the positions you want,
advance to step 11 of this procedure. If
you are unable to make the adjustments
you want, go to step 9.
9. Press (C).
Confirm that the day indicator shows 1.
1
1
Day
●Changing the date setting will cause the
day of the week hand to rotate
repeatedly. In some cases, the day of
the week hand may continue to rotate
for about 5 minutes.
lHand and Day Indicator Movement
10. If 1 is not shown for the day, rotate the
crown until 1 is shown for the day.
●The day of the week hand moves in
conjunction with crown rotation. Move
the day of the week hand to 12 o’clock.
11. Push the crown back in.
Note
●Leaving the crown pulled out for
more than approximately 30 minutes
without performing any operation
will automatically cause the
adjustment operation to become
disabled. If this happens, push the
crown back in to its normal position
and then pull it out again to restart
the procedure from the beginning.
Pushing the crown in to its normal
position part way through the
alignment procedure will cause the
hands to return to their normal
position. Any alignment you
performed up to that point will be
applied.
Operation Guide 5501
15

Moving to Another Time
Zone
Use the procedure below to easily change day
and time settings of the watch to a destination
location.
●Before Boarding
Configure the World Time to the current time
at your destination.
30
Destination time
Current time
lSpecifying a World Time City
●Prior to Takeoff
Enter the watch’s Airplane Mode when
instructed to do so by airline personnel.
30
Airplane mark
lUsing the Watch in a Medical Facility or
Aircraft
●After Arriving
1. Swap the origin time zone time with the
destination time zone time.
30
30
After swappingBefore swapping
Destination time Destination time
lSwapping Your Home City Time and
World Time
2. Exit the Airplane Mode.
lUsing the Watch in a Medical Facility or
Aircraft
Other Information
This section provides non-operational
information you also need to know. Refer to
this information as required.
City List
City code City Name UTC Offset
UTC Coordinated
Universal Time 0
LON London 0
PAR Paris +1
ATH Athens +2
JED Jeddah +3
THR Tehran +3.5
DXB Dubai +4
KBL Kabul +4.5
KHI Karachi +5
DEL Delhi +5.5
KTM Kathmandu +5.75
DAC Dhaka +6
RGN Yangon +6.5
BKK Bangkok +7
HKG Hong Kong +8
FNJ Pyongyang +8.5
EUC Eucla +8.75
TYO Tokyo +9
ADL Adelaide +9.5
SYD Sydney +10
LDH Lord Howe Island +10.5
NOU Noumea +11
WLG Wellington +12
CHT Chatham Islands +12.75
TBU Nuku’alofa +13
CXI Kiritimati +14
BAR Baker Island -12
PPG Pago Pago -11
HNL Honolulu -10
NHV Marquesas Islands -9.5
ANC Anchorage -9
LAX Los Angeles -8
DEN Denver -7
CHI Chicago -6
NYC New York -5
YHZ Halifax -4
YYT St. John’s -3.5
RIO Rio de Janeiro -3
FEN Fernando de Noronha -2
RAI Praia -1
●The information in the above table is current
as of January 2017.
●Time zones may change and UTC
differentials may become different from
those shown in the table above. If this
happens, connect the watch with a phone to
update the watch with the latest time zone
information.
Summer Time Table
When “AT (AUTO)” is selected for a city that
observes summer time, switching between
standard time and summer time will be
performed automatically at the timing shown
in the table below.
Note
●If the summer time start and end
dates for your current location have
been changed from those indicated
in the table below. If this happens,
you can have new summer time
information for your Home City and
World Time city sent to the watch by
connecting the watch with a phone.
If you cannot connect with a phone
for some reason, you can change
the summer time setting to “STD” or
“DST” manually.
Operation Guide 5501
16

City Name Summer Time
Start
Summer Time
End
London 01:00, last
Sunday in March
02:00, last
Sunday in
October
Paris 02:00, last
Sunday in March
03:00, last
Sunday in
October
Athens 03:00, last
Sunday in March
04:00, last
Sunday in
October
Tehran 00:00, March 22
or 21
00:00,
September 22 or
21
Sydney,
Adelaide
02:00, first
Sunday in
October
03:00, first
Sunday in April
Lord Howe
Island
02:00, first
Sunday in
October
02:00, first
Sunday in April
Wellington
02:00, last
Sunday in
September
03:00, first
Sunday in April
Chatham
Islands
02:45, last
Sunday in
September
03:45, first
Sunday in April
Nuku’alofa
02:00, first
Sunday in
November
03:00, third
Sunday in
January
Anchorage 02:00, second
Sunday in March
02:00, first
Sunday in
November
Los
Angeles
02:00, second
Sunday in March
02:00, first
Sunday in
November
Denver 02:00, second
Sunday in March
02:00, first
Sunday in
November
Chicago 02:00, second
Sunday in March
02:00, first
Sunday in
November
New York 02:00, second
Sunday in March
02:00, first
Sunday in
November
Halifax 02:00, second
Sunday in March
02:00, first
Sunday in
November
St. John’s 02:00, second
Sunday in March
02:00, first
Sunday in
November
Rio de
Janeiro
00:00, third
Sunday in
October
00:00, third
Sunday in
February or
00:00, fourth
Sunday in
February
●The information in the above table is current
as of January 2017.
Map Data Source
This watch uses the map database of Tokyo
Cartographic Co., Ltd.
Supported Phone Models
For information about supported phone
models, visit the CASIO Website.
http://world.casio.com/os_mobile/wat/
Specifications
Accuracy at normal temperature :
±15 seconds per month average when time
adjustment by time calibration signal receipt
or by communication with a phone is not
possible.
Timekeeping :
Hour, minute, second, day (2000 to 2099
full auto calendar), day of the week
Signal Receive Functions :
GPS signals: Auto Receive, manual receive
Time calibration signal: Auto Receive
Auto transmitter selection (for JJY, MSF/
DCF77)
Receivable call signs:
JJY (40kHz/60kHz), BPC (68.5kHz),
WWVB (60kHz), MSF (60kHz), DCF77
(77.5kHz)
Last reception result display
Automatic and manual switching between
standard time and summer time.
World Time :
Current time in 39 time zones * and
Coordinated Universal Time (UTC) time
display, summer time auto switching
* Subject to updated by connection
between the watch and a phone.
Mobile Link :
Auto Time Correction
Time setting adjusted automatically at
preset time.
Auto Summer Time Switching
Automatic switching between standard
time and summer time.
Hand alignment correction
Data Communication Specifications
Bluetooth®
Frequency Band: 2400MHz-2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters
(depends on environment)
Stopwatch :
Measurement unit: 1 second
Measuring capacity: 23:59’59” (24 hours)
Measurement function: Elapsed time
Other :
Auto hand position correction; Power
Saving; Low Battery Alert; Airplane Mode
(disables data communication)
Power Supply :
Solar panel and one rechargeable battery
Battery operating time: Approximately 7
months
Conditions:
Not exposed to light under the conditions
below.
GPS time information receive
(approximately 10 seconds): 1 operation/
2 days
GPS location information receive
(approximately 45 seconds): 1 operation/
month
Specifications are subject to change without
notice.
Mobile Link Precautions
●Legal Precautions
●This watch complies with or has received
approval under the radio laws of various
countries and geographical areas. Using
this watch in an area where it does not
comply with or has not received approval
under applicable radio laws may be a
criminal offense. For details, visit the CASIO
Website.
http://world.casio.com/ce/BLE/
●Use of this watch inside of aircraft is
restricted under the aviation laws of each
country. Be sure to follow the instructions of
airline personnel.
●Precautions when using Mobile Link
●When using this watch in combination with
a phone, keep the watch and phone close
to each other. A range of two meters is
recommended as a guideline, but the local
environment (walls, furniture, etc.), the
structure of a building, and other factors may
require a much closer range.
●This watch can be affected by other devices
(electrical devices, audio-visual equipment,
office equipment, etc.) In particular, it can be
affected by operation of a microwave oven.
The watch may not be able to communicate
normally with a phone if a microwave oven
is operating nearby. Conversely, this watch
may cause noise in radio reception and the
video image of a TV.
●Bluetooth of this watch uses the same
frequency band (2.4 GHz) as wireless LAN
devices, and use of such devices in close
proximity of this watch may result in radio
interference, slower communication speeds
and noise for the watch and the wireless
LAN device, or even communication failure.
Operation Guide 5501
17

●Stopping Radio Wave Emission by This
Watch
The watch is emitting radio waves whenever
the second hand is pointing to “C”.
Even if the second hand is not pointing at “C”,
the watch will automatically attempt to
connect with a phone four times a day to adjust
its time settings.
When in a hospital, on an aircraft, or in any
other area where the use of radio waves is not
allowed, use the operations below to stop
radio wave generation.
●Stopping Radio Wave Generation
Press (C) to terminate the Bluetooth
connection.
30
30
After disconnectionConnected
●Disabling Auto Time Adjustment
Configure OCEANUS Connected settings
to disable synchronization between the
watch and phone.
lUsing the Watch in a Medical Facility or
Aircraft
Copyrights and Registered
Copyrights
●Bluetooth® is a registered trademark of
Bluetooth SIG, Inc.
●iPhone and App Store are registered
trademarks of Apple Inc. in the United
States and other countries.
●iOS is a trademark or registered trademark
of Cisco Systems, Inc.
●GALAXY, GALAXY Note, and GALAXY S
are registered trademarks of Samsung
Electronics Co., Ltd.
●Android and Google PlayTM are registered
trademarks of Google Inc.
●Other company names and product names
used herein are trademarks or registered
trademarks of their respective companies.
Troubleshooting
Signal Reception (GPS)
Q1 The watch cannot perform a receive
operation.
Is the watch’s battery charged?
Signal reception is not possible while
battery power is low. Keep the watch
exposed to light until it recharges
sufficiently.
lSolar Charging
Is the watch in the Timekeeping Mode?
Signal reception is not possible unless the
watch is in the Stopwatch Mode. Note that
signal reception is also disabled in the
Airplane Mode. Return to the
Timekeeping Mode and/or exit the
Airplane Mode.
lNavigating Between Modes
After checking the above, the watch still
cannot perform a receive operation.
GPS signal reception is not possible
under the conditions described below.
●During power saving
●While the crown is pulled out
Q2 The second hand remains at “T+P” or
“T(TIME)” during the signal receive
operation.
The watch may be receiving leap second
information.
lLeap Second Reception
Q3 The signal receive operation always
fails.
Is the watch in a location that is appropriate
for signal reception?
Check your surroundings and move the
watch to a location where signal reception
is better.
lAppropriate Signal Reception Location
Is the face of the watch pointed straight
upwards at the sky?
Minimize movement of the watch while the
receive operation is in progress.
When the watch is set up for auto receive,
take care to avoid covering the watch face
with the sleeve of your clothing.
Q4 Signal reception should have been
successful, but the watch’s time and/
or day is wrong.
Is your Home City setting correct for your
location?
Change your Home City setting so it
correctly reflects your location.
lAcquiring GPS Position Information
Manually
lSetting a Home Time City
Is the hand and/or day indicator alignment
correct?
Adjust hand and/or day indicator
alignment.
lAdjusting Hand and Day Indicator
Alignment
After checking the above, the time and/or
day settings is still wrong.
Adjust time and day settings manually.
Operation Guide 5501
18

Signal Reception (Time
Calibration Signal)
Q1 The watch cannot perform a receive
operation.
Is the watch’s battery charged?
Signal reception is not possible while
battery power is low. Keep the watch
exposed to light until it recharges
sufficiently.
lSolar Charging
Is the watch in the Timekeeping Mode?
Signal reception is not possible unless the
watch is in the Stopwatch Mode. Note that
signal reception is also disabled in the
Airplane Mode. Return to the
Timekeeping Mode and/or exit the
Airplane Mode.
lNavigating Between Modes
Is your Home City setting correct for your
location?
The watch will not indicate the correct time
if the Home City setting is wrong. Change
your Home City setting so it correctly
reflects your location.
lAcquiring GPS Position Information
Manually
lSetting a Home Time City
After checking the above, the watch still
cannot perform a receive operation.
Time calibration signal reception is not
possible under the conditions described
below.
●When watch is at Level 2 power saving
●When the crown is pulled out
If successful reception is not possible for
some reason, you can adjust the time and
day settings manually.
Q2 The signal receive operation always
fails.
Is the watch in a location that is appropriate
for signal reception?
Check your surroundings and move the
watch to a location where signal reception
is better.
lAppropriate Signal Reception Location
Did you avoid touching the watch while the
receive operation was in progress?
Minimize movement of the watch and do
not perform any watch operation while a
receive operation is in progress.
Is the signal transmitter in your area
transmitting a signal?
The transmitter of the time calibration may
not be transmitting a signal.
Try again later.
Q3 Signal reception should have been
successful, but the watch’s time and/
or day is wrong.
Is the hand and/or day indicator alignment
correct?
Adjust hand and/or day indicator
alignment.
lAdjusting Hand and Day Indicator
Alignment
After checking the above, the time and/or
day settings is still wrong.
Adjust time and day settings manually.
lAdjusting Time Settings Manually
I can’t pair the watch with a
phone.
Q1 I’ve never been able to establish a
(pairing) connection between the
watch and phone.
Are you using a supported phone model?
Check if the phone model and its
operating system are supported by the
watch.
For information about supported phone
models, visit the CASIO Website.
http://world.casio.com/os_mobile/wat/
Did you install OCEANUS Connected on
your phone?
OCEANUS Connected needs to be
installed on your phone in order to
connect with the watch.
lA Install the required app on your
phone.
Are your phone’s Bluetooth settings
configured correctly?
Configure the phone’s Bluetooth settings.
For details about setting procedures, see
your phone documentation.
iPhone Users
●“Settings”n“Bluetooth”n On
●“Settings”n“Privacy”n“Bluetooth
Sharing”n“OCEANUS Connected”n
On
Android Users
●Enable Bluetooth.
Other than the above.
Some phones need to have BT Smart
disabled to use OCEANUS Connected.
For details about setting procedures, see
your phone documentation.
On the Home Screen, tap: “Menu” n
“Settings” n “Bluetooth” n “Menu” n “BT
Smart settings” n “Disable”.
Operation Guide 5501
19

I can’t reconnect the watch
and phone.
Q1 The watch will not re-connect with the
phone after they are disconnected.
Is OCEANUS Connected running?
The watch cannot re-connect with the
phone unless OCEANUS Connected is
running on the phone. On the phone’s
Home Screen, tap the OCEANUS
Connected icon. Then on the watch, hold
down the MODE button (C) for about 2.5
seconds.
30
Have you tried turning your phone off and
then back on again?
Turn the phone off and then back on, and
then tap the OCEANUS Connected icon.
Next on the watch, hold down the MODE
button (C) for about 2.5 seconds.
30
Q2 I can’t connect while my phone is in
the Airplane Mode.
Connection with the watch is not possible
while the phone is in the Airplane Mode. After
exiting the phone’s Airplane Mode, go to its
Home Screen and tap the “OCEANUS
Connected” icon. Then on the watch, hold
down the MODE button (C) for about 2.5
seconds.
30
Q3 I can’t connect while the watch is in
the Airplane Mode.
Exit the watch’s Airplane Mode. Then hold
down the MODE button (C) for about 2.5
seconds.
30
Q4 I changed the phone’s Bluetooth
from enabled to disabled, and now I
can’t connect anymore.
On the phone, re-enable Bluetooth, and then
go to the Home Screen and tap the
“OCEANUS Connected” icon. Next on the
watch, hold down the MODE button (C) for
about 2.5 seconds.
30
Q5 I can’t connect after turning off the
phone.
Turn on the phone and tap the OCEANUS
Connected icon. Then on the watch, hold
down the MODE button (C) for about 2.5
seconds.
30
Phone-Watch Connection
Q1 I can’t establish a connection
between the phone and watch.
Have you tried turning your phone off and
then back on again?
Turn the phone off and then back on, and
then tap the OCEANUS Connected icon.
Next on the watch, hold down the MODE
button (C) for about 2.5 seconds.
30
Has the watch been re-paired with the
phone?
After unpairing the watch and phone, re-
pair them again.
lUnpairing
If you are unable to establish a
connection...
Delete the pairing information from the
watch, and then re-pair the watch and
phone.
lSee the Note under "Unpairing".
Changing to a Different
Phone Model
Q1 Connecting the current watch to
another phone.
Pair the watch with the phone.
lC Pair the watch with a phone.
Operation Guide 5501
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