Citizen W770 User manual

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Thank you for your purchase of this Citizen watch.
Before using the watch, read this instruction manual carefully to ensure correct use.
Caliber No. of this watch is “W770”. You can access the web instruction manual of this watch using the QR code on the right or the link
https://www.citizenwatch-global.com/support/html/en/w770r/w770r.html
.
Some models may be equipped with enhanced features functions such as slide rules and tachymeters. You can also see how to use such features and functions,
which is not covered with the instruction manual by referring to the support page on the web (
https://www.citizenwatch-global.com/support/
).
ENGLISH
Safety precautions — IMPORTANT
This manual contains instructions that should be strictly followed at all times
not only for optimal use, but to prevent any injuries to yourself, other persons or
property. We encourage you to read the entire booklet (especially, pages
15
and
16
) and understand the meaning of the following symbols:
⿎Safety advisories are categorized and depicted in this manual as follows:
DANGER
Highly likely to cause death or serious injury
WARNING
Can cause serious injury or death
CAUTION
Can or will cause minor or moderate injury or damage
⿎Important instructions are categorized and depicted in this manual as follows:
(Following symbols are examples of Pictograms.)
Warning (caution) symbol followed by prohibited matters.
Warning (caution) symbol followed by instructions that should be followed or
precautions that should be observed.
Features
■
Connection with a smartphone through the dedicated app
Indicates notifications such as upcoming calls to the smartphone.
In addition, the watch has useful functions to prevent leaving the smartphone
or search the phone missed.
To get the dedicated app, access a download site of apps for your smartphone.
For details, refer to the instruction manual on the web page mentioned
above.
■
Personalization function
You can customize up to sixty-two extended functions for the watch on the
dedicated app. This watch can show notifications.
This extended function is called “
iiidea
”.
For more information of
iiidea
, see the web site below:
https://riiiver.com/
■
Eco-Drive
No periodical battery replacement is needed. This watch is fueled by light.
■
Alarm
Sounds at the time set. You can also set it through the dedicated app.
■
Chronograph
Measures up to 60 minutes by 1 second.
■
Local time
Easy to see the time for a second time zone, anywhere in the world. You can
also set it through the dedicated app.
■
Perpetual calendar
No need for monthly and leap-year date correction until February 28, 2100.
• "Eco-Drive" is an original technology of Citizen.
12
6
39
CONTENTS
Before using this watch........................................................... 2
Operation through the dedicated app.....................................................2
Band adjustment....................................................................................2
Protective stickers ..................................................................................2
How to use a specially designed crown/button .......................................2
Component identification ....................................................... 2
Changing the mode ................................................................ 2
Checking the power reserve .................................................... 2
Before connecting with a smartphone..................................... 3
Connection.............................................................................................3
Compatible smartphones .......................................................................3
To users now using the dedicated app “CITIZEN Bluetooth Watch”....3
Functions available when connected with a smartphone ......... 3
About time reception..............................................................................3
Notification indication on the watch.......................................................4
Canceling the notification indication......................................................4
Pairing (registering) the smartphone ...................................... 4
Choosing the destination to save registration information......................4
Connecting/disconnecting the smartphone ............................. 5
Checking connection status ....................................................................5
Disconnecting ........................................................................................5
Connecting.............................................................................................5
Choosing a smartphone and connecting to it ..........................................5
Screens of the dedicated app................................................... 6
Using iiidea ............................................................................ 7
Making a Riiiver account and logging in..................................................7
Setting an iiidea.....................................................................................8
Using the description screen of an iiidea.................................................8
Setting notification details.....................................................................9
Executing an iiidea through the watch .................................... 9
Notification setting on the smartphone................................... 9
Making the smartphone emit sound........................................ 9
Removing pairing (registration) information ........................... 9
Setting functions of the watch on the dedicated app ..............10
Light Level screen.................................................................................10
Local Time screen .................................................................................10
Alarm screen ........................................................................................11
Using local time [Local Time]..................................................12
Using the chronograph ..........................................................12
Using alarm [Alarm]...............................................................12
Charging your watch..............................................................13
Adjusting the time and calendar manually .............................13
Checking and correcting the reference position......................14
Bluetooth 4.0 wireless technology..........................................14
Eco-Drive watch handling precautions....................................15
Water resistance....................................................................15
Precautionary items and usage limitations.............................15
Specifications ........................................................................16

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Before using this watch
This watch has a rechargeable cell which is charged by exposing the dial
to light.
Expose the dial to direct sunlight regularly to charge the watch. For
details of charging, see page
13
-.
After opening the package, confirm power reserve of the watch referring to page
2
before starting connection to your smartphone.
Operation through the dedicated app
Some functions of this watch can be set through the dedicated app. For details, see
page
3
.
Band adjustment
We recommend seeking the assistance of an experienced watch technician for sizing
of your watch. If adjustment is not done correctly, the bracelet may unexpectedly
become detached leading to loss of your watch or injury (excluding products
containing the band adjustment tool).
Consult an authorized service center. Other shops may charge for, or may not
provide, the service.
Protective stickers
Be sure to remove any protective stickers that may be on your watch (case back,
band, clasp, etc.). Otherwise, perspiration or moisture may enter the gaps between
the protective stickers and the parts, which may result in a skin rash and/or
corrosion of the metal parts.
How to use a specially designed crown/button
Some models are equipped with a specially designed crown and/or push button to
prevent accidental operation.
Screw down crown/button
Unlock the crown/button prior to operate your watch.
Unlock Lock
Screw down
crown
Rotate the crown
counterclockwise until
it releases from the
case.
Push the crown in to the
case. With gentle pressure
towards the case, rotate the
crown clockwise to secure
it to the case. Be sure to
tighten firmly.
Screw down
push button
Rotate the
locking screw
counterclockwise, and
loosen until it stops.
Rotate the locking screw
clockwise, and tighten
firmly.
Recessed button
Press the button with a non-marring narrow-tipped object.
• Metal objects may cause marring or scratching of the button.
Component identification
• The illustrations in this instruction manual may differ from the actual appearance
of your watch.
Hands and buttons
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ON
OFF
A
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A
M
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A
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-
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-
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CALL
INFO
ACT
CHECK
LL
Minute hand
Function hand
Pressing button
A
changes
indication when the mode is [
TME
]
or [
L-TM
] and the position of the
crown is
0
.
Mode hand
Hour hand
24-hour hand
Second hand
Button
B
Button
A
Crown
Indication
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ON
OFF
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A
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L
-
M
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L
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CALL
INFO
ACT
CHECK
LL
Date indication
Mode
indication
TME
L-TM
CHR
ALM
Notification
indication
CALL
INFO
LL
ACT
CHECK
Indications of the
function hand
Power reserve
Alarm setting (
ALM
ON/OFF )
Connection status
(
ON/OFF )
Day of week
• A solar cell is placed under the dial.
• No “CHECK” is printed on the dial on some models.
Changing the mode
This watch features four different modes (functions).
TME
Shows ordinary time.
L-TM
Shows time and calendar different from those shown in
the [
TME
] mode.
CHR
Mode for using the chronograph.
ALM
Mode for setting the alarm.
1Pull the crown out to position 1.
The second hand points to 30 seconds and stops.
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OFF
ON
OFF
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-
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CALL
INFO
ACT
CHECK
LL
2Rotate the crown to change the mode of the watch.
• Turn the crown so that the mode hand will point to a marker of the mode indication
securely.
3Push the crown in to position 0to finish the procedure.
Indication of the watch changes into that of the mode selected.
• It may take a moment to change indication.
Checking the power reserve
For details of charging, see “Charging your watch” (page
13
).
Checking the power reserve
• For details of power reserve indication, see page
3
.
1Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
2Press the lower right button Arepeatedly to make the function hand to
indicate power reserve.
24
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30
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OFF
ON
OFF
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CALL
INFO
ACT
LL
Power reserve
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
Crown’s position

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Indication of power reserve in levels
Level 3210
Power
reserve
indication
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
ON
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
ON
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
ON
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
30
ON
ON
OFF
60
ON
Duration
(approx.)
In standard use with a smartphone
180 days or
shorter
280 - 250 days 250 - 200 days 200 - 180 days
Without connecting to any smartphone
20.5 - 16.5 months 16.5 - 9 months 9 months - 180
days
Meaning
Power reserve is
sufficient.
Power reserve is
OK.
Power reserve is
getting low.
Level where
insufficient
charge warning
starts
OK for normal use Charge immediately.
• See the list on page
16
for details of “Standard use with a smartphone”.
CAUTION
• When the power reserve level is “0”, the watch cannot register smartphones,
cannot be connected with them and cannot remove registration information.
• Pressing button
A
does not change indication of the function hand when the
power reserve level is “0”.
• Connection is disconnected when the power reserve level becomes “0”. However,
basic functions of the watch are still available.
• Some basic functions become unavailable as the second hand starts to move once
every two seconds (insufficient charge warning function, page
13
).
Before connecting with a smartphone
This watch communicates with smartphones
through
Bluetooth Low Energy
power-saving
communication technology.
You must install the dedicated app “
CITIZEN Eco-Drive
W770
” on your smartphone and start it to make
pairing (registration) between the phone and the
watch to connect them.
The flow of connection is as follows.
• The Bluetooth® word mark and logos are registered
trademarks owned by Bluetooth SIG, Inc.
• Android is a registered trade mark of Google Inc.
• iOS is a name of an operating system of Apple Inc. IOS
is a trademark or registered trademark of Cisco in the
U.S. and other countries and is used under license.
Connection
To use the watch connected with a smartphone, the dedicated app must be running
on the smartphone.
• On some types of smartphones, you need to change settings to make the app run
in the background.
For details, refer to the instruction manual on the web page mentioned below.
Compatible smartphones
For information about compatible smartphones (compatible with Android OS 9.0/
iOS 13.3 or newer) and the dedicated app, refer to the instruction manual on the web
page mentioned below.
To users now using the dedicated app “CITIZEN Bluetooth Watch”
To use the new dedicated app, “
CITIZEN Eco-Drive W770
”, you need to update the
firmware of the watch and uninstall the existing dedicated app, “
CITIZEN Bluetooth
Watch
”.
For details, see “Difference between Cal. W770 and Cal. W770 Riiiver” below.
• Instruction manual on the web
https://www.citizenwatch-global.com/support/html/en/w770r/w770r.html
• Difference between Cal. W770 and Cal. W770 Riiiver
https://www.citizenwatch-global.com/support/html/en/w770r/intro_w770r.html
Notice
In places with restriction on the use of electronic devices such as in an airplane,
disconnect connection with your smartphone (page
5
) and change the mode of
the watch to [
CHR
] (page
2
).
Install the dedicated app
Pairing (registration)
Connection
Start up the app
Disconnection
Functions available when connected with a smartphone
Functions available through the dedicated app
Pairing (registration) Execute pairing when connecting the watch and your
smartphone for the first time.
4
Power generation amount
check
The power generation amount of the watch is displayed
on the app.
10
Time reception The watch adjusts time and calendar automatically
using time info provided from the smartphone.
3
Settings of iiideas for
notification or other purposes
You can execute settings for the iiidea for notification
of incoming SNS messages, mails or calls or other
ones.
You can execute settings for up to 62 iiideas.
7
Local time You can set times of various area in the world on the
watch through the map on the screen of the app.
10
Alarm You can set alarm times for each day of week, activate/
deactivate alarm, and sound-emitting times.
11
Pairing information It indicates pairing information registered and stored
in the watch (for up to three devices).
7
Updating the firmware of the
watch
You can update the firmware of the watch by
connecting with the dedicated app.
7
Protraction of connection time You can set connection time of the watch and the
smartphone between 6 and 18 hours.
7
Settings You can adjust settings of various functions including
those of the watch.
7
Referring to the help You can see the tutorial, instruction manual, official
website, etc.
7
Functions available with the watch
Power reserve check Power reserve of the watch are indicated.
2
Pairing (registration) Execute pairing when connecting the watch and your
smartphone for the first time.
4
Changing the device to connect
with
You can choose a smartphone to connect with.
• This watch can pair with up to three smartphones.
When connecting, switch pairing information to that
of the device you want to connect with the watch.
5
Connection/disconnection You can connect/disconnect the watch and the
registered smartphone.
5
Notification indication
The second hand, vibration or sound of the watch tells
you notifications from an iiidea which has notification
function.
• To receive notifications, the watch and your
smartphone must be connected and the dedicated app
“
CITIZEN Eco-Drive W770
” must be running.
4
Canceling the notification
indication
You can cancel notification indication.
• The second hand does not move while indicating
notification.
4
Executing iiideas
You can execute an iiidea previously set by operating
buttons and/or the crown of the watch while the watch
and your smartphone are connected.
9
Smartphone search You can make the registered smartphone emit sound
with the watch to find it in a room.
9
Alarm You can set alarm times and activate/deactivate the
alarm.
12
Chronograph Measuring up to 60 minutes in 1-second increments.
12
Checking and adjusting the
reference position
You can check and correct the reference position of the
hands of the watch.
14
About time reception
This watch can receive time information from your smartphone and adjust the time
and calendar automatically (automatic time information reception).
Automatic time information reception is executed at the first cancellation of power
save status (page
13
) every day (after 3:00 AM of the [
TME
] mode on the watch).
• Even when the watch is disconnected with a connectible smartphone, it is
temporarily connected with the phone and get time information.
• Signal reception is not executed while the mode is any other than [
TME
] and [
L-TM
].

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Notification indication on the watch
The second hand points the notification indication corresponding to the type of
received notification.
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LL
Notification indication by the second hand
Indication Second hand
position Notification type
CALL
55 seconds Incoming call
notification
INFO
50 seconds Various info
notification
LL
45 seconds
Disconnection
notification (
Link
Loss
)
ACT
40 seconds
Receiving time
info or connecting/
executing an iiidea
through operation
of the watch
(
Activation
)
CHECK
35 seconds Indication of an
error of an iiidea
• No “
CHECK
” is printed on the dial on some models.
• The notification indication by the second hand is shown only when the mode of
the watch is [
TME
] or [
L-TM
] and the position of the crown is
0
. When the watch
receives notification in the other statuses than above, notification indication is
postponed until its status changes to any one above.
• When the watch receives a new notification while it indicates a notification, the old
one is canceled and the new one is indicated.
Notification sound and vibration
Notification sound and vibration can be added to the indication of the second hand
by using an iiidea for setting notification.
• Notification by sound or vibration comes out even when the second hand cannot
indicate notification.
Notification reception area
• Connectable distance between the watch and the smartphone is up to about 10 m (33
feet). Connectable range may be shorter due to obstacles such as walls.
Do not block the watch with your body such as your arm.
Canceling the notification indication
The second hand showing notification indication does not return to normal
movement until the indication is canceled.
• The manually canceled notification cannot be shown again.
1Press and hold the lower right button Aor the upper right button Bfor 1
second while notification is indicated.
The notification indication is canceled and the second hand returns to normal
movement.
• Changing the position of the crown also cancels the notification indication.
Testing the vibration of notification
The vibration of notification can be checked.
• You cannot test it while the power reserve level is in "0".
• The vibration settings must be executed on an iiidea.
1Change the mode to [ALM] (page 2) and push the crown in to position 0.
2Press and release the upper right button B.
The watch starts vibrating.
• Notification vibration is repeated five times.
3Change the mode to [TME] and push the crown in to position 0to finish the
procedure.
The second hand and function hand return to normal indication.
Pairing (registering) the smartphone
Execute registration at first when connecting the watch and your smartphone.
Before registration
• Unique registration information is saved on the watch and smartphone as
registration is executed.
• Up to three registrations can be saved on the watch with choosing saving
destination. Saved registration information can be checked on the app.
• When you have two or more registered smartphones, you can switch saved
registration information to connect/disconnect with one of them. (page
5
)
• New registration information cannot be saved on the saving destination containing
one without deleting the existing one (page
9
).
Choosing the destination to save registration information
1Change the mode of the watch to [TME] (page 2) and pull the crown out to
position 2.
The second hand points the saving destination of registration information
currently chosen and the function hand indicates connection status (
ON/OFF
).
2Rotate the crown to choose the destination to save registration information.
Saving destination of registration information 1
Saving destination of registration information 2
Saving destination of registration information 3
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3Push the crown in to position 0to finish the procedure.
The second hand and function hand return to normal indication.
Registering the smartphone
• For registration, you have to operate both the watch and the smartphone.
• Be sure that the watch and the smartphone are charged enough. Especially, check
the power reserve of the watch (see page
2
) and charge it before registration if
the power reserve level is “1” or “0”.
• It may take 20 - 30 seconds to finish registration. Even when registration failed, the
watch returns to normal movement in about 30 seconds.
Operation on the smartphone
1Download the dedicated app “CITIZEN Eco-Drive W770”at an app site and
install it.
2Start the dedicated app.
• Keep the screen of the app shown.
3Tap [Pair a watch].
• When the message is not indicated, tap on the bottom of the screen and tap [Pair
a watch].
4Tap [Pair a watch].
Operation of the watch
5Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
6Press and release the upper right button B.
The second hand points “
ACT
” (40-second position) and registration starts.
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6
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OFF
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CALL
INFO
ACT
LL
• Agree when a dialog appears on the screen of the app to request your permission to
use Bluetooth connection.
• On some models of smartphones, you must allow using of your location
information.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
When registration was successfully finished
“
Connected
” is displayed on the screen of the app.
• The watch and the smartphone are connected after registration is finished. In
addition, the function hand of the watch points “
ON
” of connection status and the
second hand returns to normal movement.
24 60
30
12
6
18
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M
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F
S
ON
OFF
ON
OFF
A
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CALL
INFO
ACT
LL
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
When introduction for firmware update appears
In some case, the following introduction for firmware update may appear after
pairing.
You must execute this firmware update to connect the watch and your smartphone
through the dedicated app “
CITIZEN Eco-Drive W770
”.
• Once you update the firmware of the watch, you cannot roll it back to the
previous version.
• The watch with the updated firmware cannot be connected with your
smartphone through the dedicated app “
CITIZEN Bluetooth Watch
”.
When updating firmware, check all the terms of use and check the check boxes for
agreement and tap “Agree with all the terms of use and update”.
• After finishing firmware update, execute pairing again.
Connecting/disconnecting the smartphone
Checking connection status
1Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
2Press the lower right button Arepeatedly until the function hand indicates
connection status (ON/OFF).
24 60
30
12
6
18
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M
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ON
OFF
ON
OFF
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CALL
INFO
ACT
LL
60
30
S
M
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T
F
S
ON
OFF
ON
OFF
A
L
M
Connection
status
Connection status indication
The function hand automatically indicates connection status (
ON/OFF
) as the
connection status between the watch and the smartphone changes.
ON OFF
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
Connected Disconnected
Disconnecting
• Cancel the notification indication of the second hand before disconnecting (page
4
).
1Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0while connected.
2Press and hold the upper right button Bfor 4 seconds.
The second hand points “
ACT
” (40-second position) and, after disconnection, the
function hand points “
OFF
” of connection status.
24 60
30
12
6
18
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M
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S
ON
OFF
ON
OFF
A
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CALL
INFO
ACT
LL
60
30
S
M
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T
F
S
ON
OFF
ON
OFF
A
L
M
Connecting
Way to connect the watch to a disconnected smartphone again.
• The watch cannot be connected with a non-registered smartphone. (page
4
)
• See “Choosing a smartphone and connecting to it (page
5
)” to connect the
watch to another registered smartphone.
1Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0while disconnected.
2Start the dedicated app.
• The watch can also be connected with the smartphone when the app is running in
background.
3Press and release the upper right button B.
The second hand points “
ACT
” (40-second position) and, after connection, the
function hand points “
ON
” of connection status.
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R
CALL
INFO
ACT
LL
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
Choosing a smartphone and connecting to it
Way to choose registration information of a smartphone from three saving
destinations and connect the watch to it.
• The watch cannot be connected with two or more smartphones at the same time.
1Change the mode of the watch to [TME] (page 2) and pull the crown out to
position 2.
The second hand points the registration information currently chosen and the
function hand indicates connection status (
ON/OFF
).
2Rotate the crown to choose registration information.
Registration information 1
Registration information 2
Registration information 3
24
60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R
3Push the crown in to position 0keeping the mode [TME].
• Connection with another smartphone is disconnected.
4Press and release the upper right button B.
The second hand points “
ACT
” (40-second position) and, after connection, the
function hand points “
ON
” of connection status.
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R
CALL
INFO
ACT
LL
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Screens of the dedicated app
Home screen
It is the screen which appears just after starting up the app.
This graphic pattern on the screen
represents power generation amount
of the connected watch.
The pattern in the figure means
that the power generation amount is
almost maximum and the watch is
ideally being charged.
Function menu. Scroll it sideway
and tap an icon to open a screen for
a function.
Some screens do not open when
your smartphone is not connected
with the watch.
App's icon Names of screens for functions
Local Time screen Page 10
Alarm screen Page 11
Riiiver screen Page 7
Personalization function screen Page 8
iiidea setting screen Page 8
Description screen of the iiidea Page 8
Light Level screen Page 10
Setting screen Page 7
Help screen Page 7
Local Time screen
It is the screen for adjusting settings of the local time function of the watch.
Alarm screen
It is the screen for adjusting settings of the alarm function of the watch.
Riiiver screen
It is the screen for making an account for Riiiver and logging in the service.
Personalization function screen, iiidea setting screen and description screen of
the iiidea
The personalization function screen is displayed after logging in the Riiiver service
through the Riiiver screen.
You can set iiideas on the iiidea setting screen.
Tapping in the right of an iiidea name on the iiidea setting screen opens the
description screen of the iiidea.
Personalization function screen iiidea setting screen Description screen of the iiidea
Light Level screen
It is the screen for checking the record of power generation amount of the watch.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Using iiidea
To use an iiidea, you need to set it previously to the dedicated app “
CITIZEN Eco-Drive
W770
” on its Riiiver screen. In addition, you can download iiideas you like from the
iiidea Store.
• To use an iiidea, the watch and your smartphone must be connected and the
dedicated app “
CITIZEN Eco-Drive W770
” must be running.
• You need to create an account to use the Riiiver screen and the iiidea Store.
• An e-mail address which can be used for e-mail reception is required for making
an account.
• You do not have to execute log in every time.
Making a Riiiver account and logging in
1Start the dedicated app “CITIZEN Eco-Drive W770”.
• You can execute the steps below even when your smartphone is not connected with
the watch.
2Tap on the home screen.
3Tap “Create Account”on the Riiiver LOG IN screen.
Enter login information
here when you have
already had an account.
You can use your
accounts for some other
services to log in.
Tap here when you
forgot your password.
Setting screen
It is the screen for adjusting various settings.
Pair a watch Use this when executing pairing.
Pairing information Use this to check smartphones registered on
the watch.
Connection time setting
Use this to set time to keep connection between
your smartphone and the watch. You can
choose 6, 8, 10, 12 and 18 hours.
Firmware update The icon appears here when firmware
update of the watch is available.
Riiiver account Use this to check your Riiiver account.
Notification when
disconnected
Use this to activate/deactivate notification
when the watch and your smartphone is
disconnected.
Find my smartphone
Use this to activate/deactivate the function that
makes your smartphone emitting sound with a
certain operation of the watch.
Version of this app It is indicated on the left bottom of the screen.
Firmware version of the watch It is indicated on the right bottom of the screen.
Help screen
You can browse various information on the screen.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
2Tap the switch of the iiidea you want to use to activate it.
Deactivated
Tap this when sorting or
removing iiideas.
Tap this to open the description
screen of the iiidea.
Activated
iiidea setting screen
• You can activate up to 30 iiideas for “Notifications” and “Other iiideas” each and up
to 1 iiidea for the actions “Push the buttons simultaneously” and “Pull then Push
the crown” each.
• Some iiideas are not able to be activated at the same time.
• When you want to add notifications from social media, download corresponding
iiideas using “Adding iiideas”.
Adding an iiidea
1Tap “Adding iiideas” on the personalization function screen.
The iiidea Store is opened.
2Choose an iiidea you want to add and tap“Download”.
3Return to the iiidea setting screen and activate the added iiidea.
Using the description screen of an iiidea
Open the personalization function screen on the dedicated app “
CITIZEN Eco-Drive
W770
” before trying the following steps.
• For details, see “Making a Riiiver account and logging in (page
7
)”.
1Select the type of the iiidea you want to set.
The iiidea setting screen is opened.
2Tap in the right of an iiidea name whose description screen you want to
use.
The description screen of the iiidea is opened.
The trigger to execute
this iiidea is shown here.
Setting details such as
notification method of
this iiidea are shown
here.
Composition
information of this
iiidea is shown here.
Tap here to remove
this iiidea from the
dedicated app.
Tap here to execute
settings of notification
filter. (page
9
)
Name of this iiidea.
Description screen of the iiidea
4Make an account following instruction on the screen.
After making an account, you automatically log in the Riiiver service and the
personalization function screen appears.
Personalization function screen
Setting an iiidea
Open the personalization function screen on the dedicated app “
CITIZEN Eco-Drive
W770
” before trying the following steps.
• For details, see “Making a Riiiver account and logging in (page
7
)”.
1Select the type of the iiidea you want to set.
Use this to set an iiidea
executed with a trigger such as
incoming calls.
Use this to set an iiidea
executed through pressing the
two buttons of the watch at the
same time. (page
9
)
Use this to set an iiidea
executed through operating the
crown of the watch. (page
9
)
Use this to set an iiidea
executed with other triggers.
Personalization function screen
The iiidea setting screen is opened.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Setting notification details
On iiideas equipped with notification function, you can access their notification
filtering screen through their description screen.
• It is not displayed for an iiidea equipped with no notification filter settings.
Notification is sent to
the watch when your
smartphone receives
an incoming from a
checked sender.
Executing an iiidea through the watch
Some iiideas are executed through operation on the watch.
• The watch and the smartphone must be connected.
• The iiidea which you want to execute through the operation on the watch must be
set on the dedicated app.
• iiideas may be executed through various ways other than through operation on the
watch. For details, check the description screen of iiideas.
Executing an iiidea by operating the buttons of the watch
• You cannot use this way when “Find my smartphone” is activated. Deactivate “Find
my smartphone” on the setting screen of the dedicated app (page
7
) to use this
way.
1Confirm that the watch and your smartphone is connected and the dedicated
app is running.
• If not, start up the dedicated app and press and release the upper right button
B
.
2Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
• When the second hand stops to indicate notification, press and hold the lower right
button
A
or the upper right button
B
of the watch for 1 second or more to cancel
the indication.
3Press and release both the lower right button Aand the upper right button
Bof the watch simultaneously.
The iiidea is executed.
Executing an iiidea by operating the crown
1Confirm that the watch and your smartphone is connected and the dedicated
app is running.
• If not, start up the dedicated app and press and release the upper right button
B
.
2Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
3Change the position of the crown within 3 seconds as follows: 0
→
2
→
0.
The iiidea is executed.
• Changing the position of the crown as follows also execute the iiidea:
0
→
1
→
0
.
• Rotating the crown at position
2
or
1
while pushing and pulling it in and out
cancels execution of iiidea.
• Notification indication by the second hand is canceled.
Notification setting on the smartphone
To send notifications from the smartphone to the watch using the dedicated app
“
CITIZEN Eco-Drive W770
”, notification of third-party apps must be permitted on the
settings of the phone as well as settings of an iiidea are modified correctly.
Setting examples on the smartphone are shown below:
• Turning on “Allow Notifications”
• Turning “Show in Notification Center” on
• Changing the notification style to “Banners” or “Alerts”
• Choosing “Not optimized” in “Battery optimization”
Making the smartphone emit sound
You can make the smartphone currently chosen as the connection target emit sound
when it exists in connectable range.
• This function is available even when the phone is not connected.
• Cancel the notification indication of the second hand before disconnecting (page
4
).
• You cannot use this function when “Find my smartphone” is deactivated. Activate
“Find my smartphone” on the setting screen of the dedicated app (page
7
).
• Executing an iiidea through operation of the buttons of the watch becomes
unavailable after activating “Find my smartphone” on the setting screen of the
dedicated app (page
7
).
1Change the mode to [TME] or [L-TM] (page 2) and push the crown in to
position 0.
2Press and release both the lower right button Aand the upper right button
Bsimultaneously.
The smartphone starts emitting sound.
• The sound does not stop until it is stopped on the smartphone.
3Stop the sound following instructions on the screen of the smartphone.
Removing pairing (registration) information
After registration, the watch and the smartphone store registration information of
each other.
In cases like the following, removing registration information on the watch and your
smartphone may solve such problems that you cannot connect them.
• When registration information is lost either on the watch or the smartphone.
• When you want to save registration information of the smartphone on another
saving destination.
• When the app has been updated or downloaded and installed again.
• When you cannot connect the watch and the smartphone again after registration
even after doing correct steps.
Removing the registration information on the watch
• Make sure to remove registration information also on your smartphone when you
removed registration information on the watch.
1Change the mode of the watch to [TME] (page 2) and pull the crown out to
position 2.
The second hand points the registration information currently chosen and the
function hand indicates connection status (
ON/OFF
).
2Rotate the crown to choose registration information to remove.
3Press and hold the upper right button Bfor 7 seconds.
The second hand turns fully around and removing is finished.
4Push the crown in to position 0to finish the procedure.
The second hand and function hand return to normal indication.
Removing registration information on the smartphone
1Remove “W770 Riiiver” from the list of registered Bluetooth devices on the
smartphone.
For the method to remove, refer to your smartphone.
• When “
W770 Riiiver
” cannot be seen, it has already been deleted.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Setting functions of the watch on the dedicated app
Light Level screen
You can see the record of power generation amount of the watch in a line graph on
the Light Level screen.
You can change the period indicated on the screen between “Day” (hourly indication
in a day), “Week” (hourly indication in a day of week) and “Month” (daily indication
of a month) by using the slider on the top of the screen.
• Data of power generation amount are stored in the dedicated app.
• Data storing period of the power generation amount varies depending on storage
space your smartphone.
• Past power generation data is removed if you remove the dedicated app.
1Tap on the home screen of the dedicated app.
“Day”: a line graph of hourly power generation
amount of the current day “Week”: line graphs of hourly power
generation amount of a day of last 7 days
• At the “Week” screen, the slider for selecting the last 7 days also appears.
“Month”: graphs of monthly power generation
amount
• When you move the slider on the top of the screen to “Month”, daily power
generation amount is indicated in a line graph and weekly amount in horizontal bar
graphs.
Local Time screen
You can adjust the setting of local time on the watch.
• Connection with the watch is needed. (page
5
)
1Change the mode of the watch to [L- TM] (page 2) and push the crown in to
position 0.
The local time currently set is displayed.
• Press the lower right button
A
repeatedly to indicate day of week when the function
hand does not show it.
2Tap on the home screen of the dedicated app.
3Adjust the setting of local time.
The place, time and
offset from UTC of the
local time currently
indicated is displayed
here.
Tap here to search by
place name.
Tap here to select time
difference from UTC.
Scroll the map sideway
and tap an area to set a
time zone.
Tap here to select an
area using location
information of the
smartphone.
4Tap the icon on the top of the Local Time screen after finishing adjustment.
The adjusted settings are sent to the watch.
Send icon
Its color turns blue as
modification information can be
sent to the watch.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Alarm screen
You can adjust the setting of the alarm function of the watch.
• Connection with the watch is needed. (page
5
)
1Change the mode of the watch to [TME] (page 2) and push the crown in to
position 0.
2Tap on the home screen of the dedicated app.
The Alarm screen is displayed.
Screen when alarm is not in use Screen when alarm is in use
• Tap “Back” on the top left of the screen to return to the startup screen when no
menu is indicated on the screen.
3Change the alarm setting.
Use this to turn on/off
alarm.
Use this when you select
an alarm time from its
setting history.
Tap here to set an alarm
time anew.
Move dials up/down to
set an alarm time.
Tap here to cancel alarm
time adjustment (new
setting is ineffective).
Tap here after finishing
alarm time setting.
Tap days of week on
which you want to
activate alarm.
Alarm time setting screen
• The example above shows the setting that the alarm sounds at 10:09 AM from
Monday to Friday every week.
4Tap the icon on the top of the Alarm screen after finishing adjustment.
The adjusted settings are sent to the watch.
Send icon
Its color turns blue as
modification information can be
sent to the watch.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Using local time [Local Time]
Another time which is different from that in the [TME] mode (local time) can be
shown.
• Local time can be set within a range of ±27 hours from UTC (Coordinated
Universal Time).
• Indication of date and day of week changes corresponding to local time set.
Indicating local time
1Change the mode of the watch to [L- TM] (page 2) and push the crown in to
position 0.
The local time currently set is displayed.
• Press the lower right button
A
repeatedly to indicate day of week when the function
hand does not show it.
Adjusting the local time
• You can also adjust it through the dedicated app.
1Change the mode of the watch to [L- TM] (page 2) and pull the crown out
to position 2.
The second hand points 0 second and the local time is displayed.
2Rotate the crown to adjust the local time.
The minute hand moves by 15 minutes.
• When you rotate the crown quickly a few times, the hand/indication will move
continuously.
To stop the rapid movement, rotate the crown in either direction.
They stop automatically after moving ±12 hours.
3Push the crown in to position 0to finish the procedure.
Using the chronograph
The chronograph on this watch can measure up to 60 minutes by 1 second.
• After 60 minutes of continuous chronograph operation, the chronograph
automatically stops and is reset.
• Indication of the function hand cannot be changed in the [
CHR
] mode.
1Change the mode of the watch to [CHR] (page 2) and push the crown in to
position 0.
The second hand and function hand indicate 00:00. The other hands and
indication keep showing time in the [
TME
] mode.
2Start measurement.
Button
B
: start/stop
Button
A
: Reset
Press and release this button to reset the
chronograph after measurement.
Chronograph second
Chronograph minute
24 60
30
12
6
18
S
M
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W
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F
S
ON
OFF
ON
OFF
A
L
M
M
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E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
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H
C
R
CALL
INFO
ACT
LL
• Pulling out the crown will stop and reset the chronograph.
3Change the mode to [TME] and push the crown in to position 0to finish the
procedure.
The second hand and function hand return to normal indication.
Using alarm [Alarm]
The alarm on this watch is based on the time of the [
TME
] mode.
• Indication of the function hand cannot be changed in the [
ALM
] mode.
• You can also set it through the dedicated app.
Checking alarm setting
1Change the mode of the watch to [ALM] (page 2) and push the crown in to
position 0.
The hour, minute and 24-hour hands indicate the alarm time currently set and
the function hand shows the alarm setting (
ALM ON/OFF
).
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
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-
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-
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R
CALL
INFO
ACT
LL
Alarm setting
60
30
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
• Each time you press the lower right button
A
,
ON/OFF
of the alarm setting changes
alternately.
ALM ON ALM OFF
30
ON
ON
OFF
A
L
M
60
30
ON
ON
OFF
A
L
M
30
ON
ON
OFF
A
L
M
60
30
ON
ON
OFF
A
L
M
2Change the mode to [TME] and push the crown in to position 0to finish the
procedure.
The watch returns to normal indication.
When the time set comes
Alarm sounds for 15 seconds as the time set comes.
• Alarm does not sound when the position of the crown is not
0
.
To stop alarm
Press any of the buttons.
Changing alarm setting
• The alarm time is set in 24-hour basis.
1Change the mode of the watch to [ALM] (page 2) and pull the crown out to
position 2.
The alarm time currently set is displayed and the function hand shows the alarm
setting (
ALM ON/OFF
).
2Press and hold lower right button Afor 2 seconds or more.
The minute hand slightly moves and the alarm time setting becomes adjustable.
3Rotate the crown to set the alarm time.
• Check AM/PM referring to the 24-hour hand.
• If you rotate the crown quickly a few times, the hand will move continuously. To
stop the rapid movement, rotate the crown in either direction.
4Press and release the lower right button Ato set the alarm setting (ALM ON/
OFF).
• Each time you press the lower right button
A
,
ON/OFF
switches alternately.
5Change the mode to [TME] and push the crown in to position 0to finish the
procedure.
The watch returns to normal indication.
Checking the alarm
Alarm sounds while pressing and holding the upper right button
B
in step 1.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Charging your watch
This watch has a solar cell under the dial and stores the power
generated by the cell in its built-in rechargeable cell.
The cell is charged by exposing the dial to light such as direct
sunlight or fluorescent lamps.
For optimal performance, be sure to:
• Put the watch in a location where the dial is exposed to bright
light such as by the window even when it is not used.
• Expose its dial to direct sunlight for 5 or 6 hours at least every
week.
• Avoid leaving it in dark places for long periods of time.
CAUTION
• Do not charge the watch at a high temperature (about 60°C (140°F) or higher) as
doing so may cause movement malfunction.
• If the watch is obscured from light by long sleeves frequently, supplemental
charging may be needed to ensure continual operation.
• The watch stops charging automatically after finishing (overcharging prevention
function). The function prevents damage to performance of the watch and
rechargeable cell due to overcharging.
When the watch reaches a low charge state (insufficient charge warning
function)
When the power reserve becomes low, the second hand moves
once every two seconds. This is the insufficient charge warning
function. Be sure to fully charge your watch immediately as
outlined below.
• When the watch is sufficiently charged, the second hand will
move normally.
• If you do not charge the watch for 10 days or longer after the insufficient charge
warning movement has begun, the watch will be depleted of all power and stop.
During the insufficient charge warning state
The time, date and day of week are indicated correctly.
• The indication in the [
TME
] mode is displayed in the other modes and functions in
them are not available.
Charging time by environment
Below are the approximate charging times when exposing to light continuously.
Please use this table as a reference only.
Environment Illuminance
(lx)
Charging time (approx.)
To work for one
day
To start working
normally when the
cell is discharged
To become fully
charged when the
cell is discharged
Outdoors
(sunny)
100,000
12 minutes 9.5 hours 30 hours
Outdoors
(cloudy)
10,000
30 minutes 25 hours 70 hours
20cm (7-
7/8 inches)
away from a
fluorescent
lamp (30W)
3,000
1.5 hours 70 hours −
Interior lighting
500
8 hours − −
• Exposing to direct sunlight is recommended to charge your watch. A fluorescent
lamp or interior lighting does not have sufficient illumination to charge the
rechargeable cell efficiently.
After charged fully, the watch runs without additional charging
In standard use with a smartphone Using with no smartphones
About 9 months
(the connection function is available for
about 100 days.)
About 1.5 years
• See the list on page
16
for details of “Standard use with a smartphone”.
Cautions when connected with a smartphone
• Long-time connection with a smartphone and reception of many notification in
a day consume much amount of power. Be sure to keep your watch sufficiently
charged when always connecting the watch with your smartphone.
• We recommend disconnecting your smartphone (page
5
) when connection is
not needed.
• Take also care that your smartphone is charged enough.
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
B
L
E
A
L
M
M
T
E
M
T
E
L
A
M
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A
M
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L
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R
Power save function
The second hand stops automatically to save power when the watch has been kept in
a dark place for a certain period of time and it cannot generate power.
• The watch works normally even while saving power.
• The power save function does not operate under the following conditions:
-The crown is in position
1
or
2
.
-The mode is [
CHR
] or [
ALM
].
-The second hand indicates notification.
Canceling the power save function
The power save status ends and the hands return to normal indication as the watch
is operated or the dial is exposed to light and power generation starts.
• Power save status is also canceled as receiving time info or notification.
Adjusting the time and calendar manually
You can set the time and calendar of the [
TME
] mode manually.
• The local time is also corrected automatically following its setting.
1Change the mode to [TME] (page 2) and pull the crown out to position 2.
The second hand points the registration information currently chosen.
2Press and hold the lower right button Afor 2 seconds or more.
The second hand stops at 0 second and the minute hand slightly moves.
3Press and release the lower right button Arepeatedly to change the hand/
indication to be corrected.
• Each time you press button
A
, the target changes as follows:
Hour and minute → date → year/month → day of week → (back to the top)
• The hands and indications slightly move when selected to show they become
adjustable.
4Rotate the crown to adjust the hand/indication.
• The hour, minute and 24-hour hands move synchronously.
• Check AM/PM referring to the 24-hour hand.
• Date indication changes to the next as the function hand rotates 5 times.
• When you rotate the crown quickly a few times, the hands and date indication
will move continuously. To stop the rapid movement, rotate the crown in either
direction.
5Repeat steps 3 and 4.
6Push the crown in to position 0in accordance with a reliable time source to
finish the procedure.
Month and year indications
Set the year and month with the position of the second hand.
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
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12
1
2
3
4
5
6
7
8
9
10
11
“Month” corresponds to one of
the 12 zones shown in the figure
below.
Each number means month.
“Year” corresponds to the years
since leap year and is indicated
with markers in the zone of each
month.
24
60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R
Years since leap year:
0
(Leap year)
0
Years since leap year:
1
1
Years since leap year:
2
2
3
Years since leap year:
3
Year Years since
leap year Second hand position
2020 2024 2028 2032 0
(Leap year) Hour marker
2021 2025 2029 2033 1
1st min. marker
2022 2026 2030 2034 2
2nd min. marker
2023 2027 2031 2035 3
3rd min. marker
Ex.: Position of the second hand when setting February 2021
You can find that the years since leap year of 2021 is "1" from the table and the
second hand must be set to the 1st minute marker of February zone.
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Checking and correcting the reference position
If the time or calendar is not shown correctly even after proper reception of the time
info, check whether the reference position is correct.
• If the hands and indication do not reflect the correct reference position, the time
and calendar will not be indicated accurately even if the time info is received.
What is the reference position?
The base position of all hands and calendar to
properly indicate the various functions of this
watch.
• Hour, minute and second hands: 0 hour 00
minute 0 second
• 24-hour hand: “24”
• Date indication: midway between “31” and “1”
• Function hand: “30” (straight below)
Correct reference positions
24 60
30
12
6
18
S
M
T
W
T
F
S
ON
OFF
ON
OFF
A
L
M
M
T
E
M
T
E
L
A
M
L
A
M
H
C
R
T
L
-
M
T
L
-
M
H
C
R
1Change the mode of the watch to [CHR] (page 2) and pull the crown out to
position 2.
The second hand moves to the current reference positions stored in memory and
stops.
2Press and hold the lower right button Afor 2 seconds.
The hands and indication start to move to the current reference positions stored
in memory.
• Release the button as the hands start to move.
3Check the reference positions of them referring to the illustration above.
Correct Push the crown in to position
0
to finish the
procedure. Set the mode to [
TME
] after that.
Wrong Proceed to step 4 and correct the reference position.
4Press and release the lower right button A.
The function hand slightly moves and the hand and date indication become
adjustable.
5Press and release the lower right button Arepeatedly to change the hand/
indication to be corrected.
• Each time you press the button, the target changes as follows:
Function hand/date indication → hour, minute and 24-hour hands → second hand →
(back to the top)
• The hands slightly move when selected to show they become adjustable.
• The function hand points “60” (straight above) when the hour, minute and 24-hour
hands are the targets of adjustment.
6Rotate the crown to adjust the hand/indication.
• The hour, minute and 24-hour hands move synchronously.
• Date indication changes to the next as the function hand rotates 5 times.
• When you rotate the crown quickly a few times, the hand/indication will move
continuously. To stop the rapid movement, rotate the crown in either direction.
7Repeat steps 5 and 6.
8Push the crown in to position 0.
9Change the mode to [TME] to finish the procedure.
Resetting the watch - All Reset
When the watch does not work properly, you can reset all the settings. If the power
reserve is insufficient, charge the watch first.
Be sure to perform the following operations after All Reset.
1. Correct the reference positions.
After All Reset, the watch is in the reference position adjustment mode.
Refer to step 4 and after on page
14
.
2. Adjust the time and calendar.
Adjust the time and calendar manually (page
13
) or by connecting with
your smartphone.
1Change the mode of the watch to [CHR] (page 2) and pull the crown out to
position 2.
2Press and hold buttons Aand Bat the same time for 4 seconds or more and
release them.
The watch emits alarm sound and vibrates as the buttons are released and the
hands move to their current reference position.
The setting values after All Reset
Calendar January 1 of leap year, Sunday
Local time ±0 from UTC
Alarm setting ALM OFF
Alarm time 0:00 AM
Registration
information of
smartphones
Registration information is kept and
registration information 1 is set as connection
target.
Connection status OFF
Bluetooth 4.0 wireless technology
Before using this watch
Use of the Bluetooth communication technology is not legally permitted in some
countries or regions. Visit our web site below to confirm the list of countries where
Bluetooth is legally available.
https://www.citizenwatch-global.com/support/html/en/w770r/w770r.html
• Using this watch in a country where it is not permitted may be punished under its
law.
• Communication using Bluetooth may be monitored intentionally or accidentally.
Do not use this watch for important communication or any communication
involving human lives.
• The Bluetooth® word mark and logos are registered trademarks owned by
Bluetooth SIG, Inc.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
Eco-Drive watch handling precautions
<Always Make Sure to Recharge Frequently>
■ Long sleeves may inhibit light transmission to your watch. This may result in your watch loosing
charge. In these cases supplemental charging may be necessary.
■ When you take off the watch, try to place it in as bright a location as possible. This will ensure
optimal operation.
CAUTION Recharging Precautions
• Do not charge the watch at a high temperature (about 60 °C (140°F) or
higher) as doing so may cause the movement to malfunction.
Ex.:
-Charging the watch too close to a light source which generates a large
amount of heat such as an incandescent lamp or halogen lamp. When
charging under an incandescent lamp, be sure to leave 50 cm (19-11/16
inch) or more between the lamp and the watch to avoid exposing the
watch to excessive heat.
-Charging the watch in a location where the temperature may become
extremely high such as on the dashboard of a vehicle.
<Replacement of Rechargeable Cell>
• This watch utilizes a special rechargeable cell that does not require periodical replacement.
However power consumption may increase after using the watch for a number of years due to wear of
internal components and deterioration of oils. This may cause stored power to be depleted at a faster rate.
WARNING Handling of Rechargeable Cell
• The rechargeable cell should never be removed from the watch. If for any reason it becomes necessary
to remove the rechargeable cell from the watch, keep out of the reach of children to prevent accidental
swallowing. If the rechargeable cell is accidentally swallowed, consult a doctor immediately.
• Do not dispose of the rechargeable cell with ordinary garbage. Please follow the instructions of your
municipality regarding collection of batteries to prevent the risk of fire or environmental contamination.
WARNING Use Only the Specified Battery
• Never use a battery other than the rechargeable cell specified for use in this watch.
Although the watch structure is designed so that it will not operate when another type of battery is
installed, if a conventional watch battery or other type of battery is installed in the watch and the watch is
recharged, there is the risk of overcharging which may cause the battery to rupture.
This can cause damage to the watch and injury to the wearer. When replacing the rechargeable cell, always
make sure to use the designated rechargeable cell.
Water resistance
WARNING Water resistance
• Refer to the watch dial and/or the case back for the indication of the water resistance of your watch. The
following chart provides examples of use for reference to ensure that your watch is used properly. (The
unit “1bar” is roughly equal to 1 atmosphere.)
• WATER RESIST(ANT) ××bar may also be indicated as W.R.××bar.
• Non-water resistant models are not designed to come into contact with any moisture. Take care not to
expose a watch with this rating to any type of moisture.
• Water resistance for daily use (to 3 atmospheres) means the watch is water resistant for occasional
accidental splashing.
• Upgraded water-resistance for daily use (to 5 atmospheres) means that the watch may be worn while
swimming, but is not to be worn while skin diving.
• Upgraded water-resistance for daily use (to 10/20 atmospheres) means that the watch may be worn while
skin diving, but not while scuba or saturated diving using helium gas.
Name
Indication
Specification
Water-related use
Dial or Case
back
Minor
exposure
to water
(washing
face,
rain,
etc.)
Swimming
and general
washing
work
Skin
diving,
marine
sports
Scuba
diving
using an
air tank
Saturation
diving
using
helium gas
Operate
the
crown or
button
when the
watch is
wet
Non-water
resistant −Non-water resistant
NO NO NO NO NO NO
Everyday-use
water resistant
watch
WATER
RESIST
Water-resistant to
3 atmospheres
OK NO NO NO NO NO
Upgraded
everyday use
water resistant
watch
W. R. 5 bar
Water-resistant to
5 atmospheres
OK OK NO NO NO NO
W. R. 10 bar
W. R. 20 bar
Water-resistant
to 10 and 20
atmospheres
OK OK OK NO NO NO
Precautionary items and usage limitations
CAUTION To Avoid Injury
• Be particularly careful when wearing your watch while holding a small child, to avoid injury.
• Be particularly careful when engaged in strenuous exercise or work, to avoid injury to yourself and others.
• Do NOT wear your watch while in a sauna or other location where your watch may become excessively
hot, since there is the risk of burns.
• Be careful when putting on and taking off your watch, since there is a risk of damaging your fingernails,
depending on the manner in which the band is fastened.
• Take off your watch before going to bed. It may cause an unexpected injury or a rash.
CAUTION Precautions
• Always use the watch with the crown pushed in (normal position). If the crown is of the screw lock-type,
make sure it is securely locked.
• Do not operate (use the crown and/or buttons) the watch when it is wet. Water may enter the watch
causing damage to vital components.
• If water enters the watch or the watch fogs up and does not clear up even after a long time, consult your
dealer or an authorized service center for inspection and/or repair.
• Even if your watch has a high level of water resistance, please be careful of the following.
-If your watch is immersed in sea water, rinse thoroughly with fresh water and wipe with a dry cloth.
-Do not pour water from a tap directly onto your watch.
-Take off your watch before taking a bath.
• If seawater enters the watch, place the watch in a box or plastic bag and immediately take it in for repair.
Otherwise, pressure inside the watch will increase, and parts (crystal, crown, push button, etc.) may come
off.
CAUTION When Wearing Your Watch
<Band>
• Leather bands and rubber (urethane) bands will deteriorate over time due to perspiration or dirt.
In addition, they are made of natural material and will be worn, deformed and discolored over time. It is
recommended to replace the band periodically.
• The durability of a leather band may be affected when wet (fading, peeling of adhesive), owing to the
properties of the material. Moreover, wet leather may cause a rash.
• Do not stain a leather band with substances containing volatile materials, bleach, alcohol (including
cosmetics). Discoloration and premature aging may be occurred. Ultraviolet light such as direct sunlight
may cause discoloration or deformation.
• It is recommended to take off the watch if it gets wet, even if the watch itself is water-resistant.
• Do not wear the band too tightly. Try to leave enough space between the band and your skin to allow
adequate ventilation.
• The rubber (urethane) band may be stained by dyes or soil present in or on clothing or other accessories.
Since these stains may not be removable, caution is required when wearing your watch with items that
tend to easily transfer color (articles of clothing, purses, etc.). In addition, the band may be deteriorated by
solvents or moisture in the air. Replace with a new one when it has lost elasticity or become cracked.
• Please request adjustment or repair of the band in the following cases:
-You notice an abnormality with the band due to corrosion.
-The pin of the band is protruding.
• We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If
adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your
watch or injury (excluding products containing the band adjustment tool).
Consult an authorized service center. Other shops may charge for, or may not provide, the service.
<Temperature>
• The watch may stop or the function of the watch may be impaired in extremely high or low temperature.
Do not use the watch in places where the temperature is outside the operating temperature range as stated
in the specifications.
<Magnetism>
• Analog quartz watches are powered by a step motor that uses a magnet. Subjecting the watch to strong
magnetism from the outside can cause the motor to operate improperly and prevent the watch from
keeping time accurately.
Do not allow the watch to come into close proximity to magnetic health devices (magnetic necklaces,
magnetic elastic bands, etc.) or the magnets used in the latches of refrigerator doors, clasps used in
handbags, the speaker of a cell phone, electromagnetic cooking devices and so on.
<Strong Shock>
• Avoid dropping the watch or subjecting it to other strong impact. It may cause malfunctions and/or
performance deterioration as well as damage to the case and bracelet.
<Static Electricity>
• The integrated circuits (IC) used in quartz watches are sensitive to static electricity. Please note the watch
may operate erratically or not at all if exposed to intense static electricity.
<Chemicals, Corrosive Gasses and Mercury>
• Do not use the watch in environment with chemicals or corrosive gasses. If paint thinner, benzene or
other solvents or products containing these solvents (including gasoline, nail-polish remover, cresol,
bathroom cleaners and adhesives, water repellent, etc.) are allowed to come into contact with the watch,
they may discolor, dissolve or crack the materials. Be careful when handling these chemicals. Contact with
mercury such as that used in thermometers may also cause discoloration of the band and case.
<Protective Stickers>
• Be sure to remove any protective stickers that may be on your watch (case back, band, clasp, etc.).
Otherwise, perspiration or moisture may enter the gaps between the protective stickers and the parts,
which may result in a skin rash and/or corrosion of the metal parts.

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CITIZEN CONNECTED Eco-Drive W770 Riiiver Instruction manual
CAUTION Always Keep Your Watch Clean
• Rotate the crown while it is pressed in fully and press the buttons periodically so they do not become
stuck due to accumulations of foreign matter.
• The case and band of the watch come into direct contact with the skin. Corrosion of the metal or
accumulated foreign matter may result in black residue coming from the bracelet when exposed to
moisture or perspiration unnoticed soiling such as that caused by perspiration. Be sure to keep your watch
clean at all times.
• The case and band of the watch come into direct contact with the skin. In rare circumstances,
accumulated dirt, foreign matter may cause irritation with the skin. If you think there is something wrong,
discontinue wearing the watch immediately and consult your physician.
In the case of accumulation of sweat or dirt on a metal band or case, clean thoroughly using a brush and
neutral detergent. In the case of a leather or rubber (urethane) band, wipe clean using a dry cloth.
• Leather bands may become discolored by perspiration or dirt. Always keep your leather band clean by
wiping with a dry cloth.
Caring for Your Watch
• Wipe any dirt or moisture such as perspiration from the case and crystal with a soft cloth.
• For a metallic, plastic or rubber (urethane) watchband, wash any dirt off with water. Remove the small
amounts of dirt trapped between the crevices of the metallic band with a soft brush.
• For a leather band, wipe off dirt using a dry cloth.
• If you will not be using your watch for an extended period of time, carefully wipe off any perspiration,
dirt or moisture and store in a proper location, avoiding locations subject to excessively high or low
temperatures and high humidity.
When Luminous Paint is used for your watch
The paint on the dial and hands helps you with reading the time in a dark place. The luminous paint stores light
(daylight or artificial light) and glows in a dark place.
It is free from any radioactive substance or any other material harmful to a human body or environment.
• The light emission gradually becomes weaker as time passes.
• The duration of the light (“glow”) will vary depending on the brightness, types of and distance from a
light source, exposure time, and the amount of the paint.
• The paint may not glow and/or may dissipate quickly if exposure to light was not sufficient.
Specifications
Model W770 Type Analog solar-powered watch
Timekeeping
accuracy
(without
reception)
Average monthly accuracy: ±15 seconds when worn at normal operating
temperatures between +5°C (41°F) and +35°C (95°F)
Operating
temperature
range
‒10°C (14°F) to +60°C (140°F)
Display
functions
• Time: Hours, minutes, seconds, 24-hour
• Calendar: Date, day of week
Duration
• After charged fully, the watch runs without additional charging
-
When power save functions for 7.5 hours a day:
Approximately 9 months (Standard use with a smartphone)
Approximately 1.5 years (using with no smartphones)
-
When power save functions all the day:
About 4 years
• Power reserve upon insufficient charge warning function: About 10
days
Battery Rechargeable cell (lithium button cell), 1pc.
Additional
functions
• Solar power function
• Overcharging prevention
function
• Insufficient charge warning
function (two-second interval
movement)
• Power reserve indication (in
four levels)
• Energy saving function
(power save feature)
• Indication functions about
smartphone connection
• Connection status indication
(
ON/OFF
)
• Indication of ongoing
communication processing
(
ACT
)
• Notification indication (
CALL/
INFO/LL
)
• Indication of an error of an
iiidea (
CHECK
)
• Personalization function
• Automatic time information
reception function
• Vibration function
• Vibration test function
• Alarm function (
ALM ON/OFF
)
• Alarm monitor function
• Chronograph (up to 60 minutes in
one second increments)
• Local time
• Perpetual calendar (until February
28th, 2100)
• Impact detection function
The following conditions are supposed in the table above as “Standard use with a
smartphone”.
Connection time 6 hours/day
Notification
• Notification sound and vibration
Vibration: 0.45 seconds/notification
Sound: 0.35 seconds/notification
10 times/day
Alarm Once/day
Reconnection Once/day
Chronograph 1 hour/day
Power save 7.5 hours/day
Specifications and contents are subject to change without prior notice.