Citizen H800 User manual

1
English
Thank you for your purchase of this Citizen watch.
Before using the watch, read this instruction manual carefully to ensure
correct use. After reading the manual, store it in a safe place for future
reference.
Be sure to visit the Citizen website at http://www.citizenwatch-global.com/.
Here you will find a variety of information such as electronic setting guides,
answers to frequently asked questions, Eco-Drive recharging information
and more.
To check the movement number
A case number—4 alphanumeric characters and 6 or
more alphanumeric characters—is engraved on the
case back.(Figure on the right)
The first 4 characters of the case number represent
the movement number of the watch.In the example
on the right, " " is the movement number.
The engraving position may differ
depending on watch model.
Engraving position example

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3
English
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 60 to 71) and
understand the meaning of the following symbols:
■ 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
Safety precautions (IMPORTANT)
■ Important instructions are categorized and depicted in this manual as follows:
Warning (caution) symbol followed by instructions that should
be followed or precautions that should be observed.
Warning (caution) symbol followed by prohibited matters.
Safety precautions (IMPORTANT)

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English
Before using this watch
After unpacking, the following must be done before using the watch:
◆Checking the power reserve Page 17
For optimal performance, ensure your watch is fully charged prior to use.
◆
Setting the World Time Page 22
Select the city or time difference for which you want to indicate the time and date.
◆
Checking the time signal reception Page 41
Check the result of the time signal reception.
Before using this watch
◆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.
◆Band adjustment
We do not recommend attempting to adjust the watch band yourself. Special
expertise and experience is required for proper adjustment. If not adjusted
correctly, the band may become detached leading to loss of your watch. (Some
retailers may supply a band adjustment tool with your purchase).
For band adjustment, we recommend you consult the retailer from where the
watch was purchased or your nearest Authorized Citizen Service Center. Some
repair shops may charge a nominal fee for adjustment if the watch was not
purchased directly from them.
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 pages 12 to 19.

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7
English
◆Specially designed crown/push button
Some models are equipped with a specially designed crown and/or push button(s)
to prevent accidental operation. Please refer to the following chart for use.
How to use a screw down crown and screw down push button
Unlock the crown 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.
How to use recessed buttons
Press the button with a narrow-tipped object such
as a wooden toothpick.
Before using this watch Before using this watch

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English
Table of contents
Features ……………………………………………………………… 10
Component identication ………………………………………… 11
Charging your watch………………………………………………… 12
Using the chronograph……………………………………………… 20
Setting the World Time ……………………………………………… 22
Setting Daylight Saving Time ……………………………………… 26
Notes on the time signal reception ………………………………… 33
Checking the time signal reception………………………………… 41
Receiving the time signal manually (On demand reception) …… 43
Adjusting the time/calendar manually …………………………… 45
Checking and correcting the current reference position ………… 50
Table of contents
Troubleshooting …………………………………………………… 54
Eco-Drive (solar powered) watch handling precautions ………… 60
Water resistance …………………………………………………… 64
Precautionary items and usage limitations ……………………… 66
Specications………………………………………………………… 72

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English
Features Component identification
24
12
60
30
1050
2040
00
50
10
20
30
80
90
4060
70
LON
PAR
ATH
RUH
DXB
KHI
DEL
DAC
BKK
BJS
TYO
ADL
SYD
NOU
AKL
MDY
HNL
ANC
LAX
DEN
CHI
NYC
SCL
RIO
FEN
PDL
OK
RX
NO
S
M
T
W
T
F
S
ON
SMT
OFF
* “Eco-Drive” is Citizen’s proprietary technology.
"Radio controlled watch"
Receives a time signal from one of the
five signal stations located in four regions
and automatically adjusts the time and
calendar.
“World Time”
Easy to see the time and calendar of
cities all over the world.
“Eco-Drive”
Never needs a new battery. This
watch is fueled by light.
“Chronograph”
Measure elapsed time up to
60 minutes.
“Perpetual calendar”
Once set, the date will
automatically adjust for months
shorter than 31 days as well as
leap years.
* The illustrations in this instruction manual may differ from the actual appearance of your watch.
* A solar cell is placed under the dial.
Chronograph minute
hand
Daylight Saving Time
indication (ON/OFF)
Minute hand
Upper right
button (B)
Date indicator
Crown
Lower right
button (A)
Day of the
week indication
Chronograph
1/20 second hand
Power reserve level
Hour hand
24-hour hand
Second hand/
Chronograph second
hand
Signal reception
indication
(OK/RX/NO)
City indication

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English
This watch has a rechargeable cell which is charged by exposing the dial to light, such
as direct sunlight or fluorescent lamps.
After taking off the watch, put it in a location where the dial is exposed to bright light,
such as by a window.
The watch can be charged effectively when
the dial is exposed to sunlight as shown in the
figure.
For optimal performance, be sure to:
• Chargethewatchbyexposingittodirect
sunlight for five to six hours at least once a
month.
• Avoidleavingthewatchinadarkplacefor
long periods of time.
Charging your watch Charging your watch
• If the watch is obscured from light by long sleeves frequently, supplemental
charging may be needed to ensure continual operation.
• Do not charge the watch at high temperature (about 60°C/140°F or higher).

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English
Charging your watch
◆Charging time by environment
Below are the approximate times required for charging when exposing the watch
dial 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 5 minutes 40 minutes 30 hours
Outdoors (cloudy) 10,000 11 minutes 1 hour 40 hours
20 cm (7-7/8 inches)
from a fluorescent
lamp (30W)
3,000 40 minutes 2.5 hours 130 hours
Interior lighting 500 4 hours 14 hours 920 hours
Maximum run time from full charge: Approx. 6 months (in normal operation),
approx. 10 months (with power save feature)
Charging your watch
◆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.
• Whenthewatchissufficientlycharged,thesecondhandwillmovenormally.
• Ifyoudonotchargethewatchfor2
days or longer after the insufficient
charge warning movement has begun,
the watch will be depleted of all
power and stop.
• When in the insufficient charge
warning state, the current time and
date are indicated. However, you
cannot configure or confirm settings,
or operate the chronograph.

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English
Charging your watch
◆Checking the power reserve
Checking the current power reserve.
Ⓐ
01 2
50
40
1. Ensure that the crown is in position 0.
2. Press and release the lower right button Ⓐ.
The chronograph minute hand moves to indicate
the power reserve.
• Fordetailsonthepowerreservelevel,seethe
next page.
3. Press and release the lower right button Ⓐ
to finish the check procedure.
• Thecurrenttimeindicationwillresume
automatically when leaving the watch for
approx. 10 seconds.
Charging your watch
◆Power save feature
When the watch is not exposed to light for 30 minutes or longer, such as when
you store it in a dark place, the second hand automatically stops to save the power.
However, the watch continues to work internally.
• Whenthecrownisinposition1or2,thepowersavefeaturewillnotactivate.
• Thepowersavefeaturecannotbeactivatedordeactivatedmanually.
◆To cancel the power save feature
When the watch is exposed to light sufficient for charging, the power save feature
is automatically canceled and normal time indication will resume.
Note: You cannot perform this operation when
using the chronograph.

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English
Charging your watch
• When the power reserve is at level 1 or 0, the chronograph minute hand always
indicates the power reserve level.
•
When the power reserve is at level 0, the current time and date are indicated. However,
you cannot configure or confirm settings, or operate the chronograph.
Charging your watch
The power reserve level indications
Level 3 2 1 0
Power
reserve
level
Approximate
duration of
operation at
each level
Approx. 180 to 130 days Approx. 130 to 30 days Approx. 30 to 2 days Approx. 2 days
Power reserve
is sufficient for
all features and
functions. Optimal
performance is
achieved at this
level.
Power reserve is
sufficient for all
operations at this
level.
Power reserve is
getting low. The
watch should be
fully charged to
ensure optimal
performance.
Power reserve is
not sufficient for
normal operation.
The watch must
be fully charged.
The watch must be charged immediately.
1050
2040
1050
2040
1050
2040
1050
2040

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English
5. Press and release the lower right button Ⓐto reset the measured time.
• Makesuretoresetthetimeafterfinishingmeasurement.
6. Press and release the lower right button Ⓐagain to return to current time
indication.
• Thecurrenttimeindicationwillresumeautomaticallywhenleavingthewatchfor
approx. 3 hours.
• When 30 seconds have elapsed after the measurement is started (or restarted), the
chronograph 1/20 second hand stops at the zero second position. However, the
measurement is still conducted.
• The chronograph cannot be used when the power reserve is at level 0. Even when
the power reserve is at level 1, we recommend charging the watch before using
the chronograph.
• Do not pull out the crown during chronograph measurement operation. The
measurement will stop.
Using the chronograph
1. Ensure that the crown is in position 0.
2. Press and release the upper right button Ⓑ.
The watch enters the chronograph mode.
• Asshowninthefigure,thechronograph
minute, chronograph second, and chronograph
1/20 second hands point in the 12 o’clock
direction.
3. Press and release the upper right button Ⓑ
to start measurement.
4. Press and release the upper right button Ⓑ
to suspend measurement.
• Pressingtheupperrightbutton Ⓑagain will
resume the measurement operation.
Using the chronograph
Ⓐ
Ⓑ
01 2
60
30
1050
2040
ON
SMT
OFF
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
The chronograph can measure up to 60 minutes in units of 1/20 seconds.
Chronograph
minute hand
Chronograph 1/20
second hand
Chronograph
second hand

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English
Setting the World Time
The watch can indicate the time and date of any of the 26 pre-programmed cities.
• Whenusingthewatchinanareanotlistedinthetablebelow,selectandsetthecity
with the same time difference.
Setting the World Time
0 1 2
DXB
KHI
DEL
DAC
BKK
BJS
TYO
ADL
SYD
NOU
AKL
LON
PAR
ATH
RUH
DXB
KHI
DEL
DAC
BKK
BJS
TYO
ADL
SYD
NOU
AKL
MDY
HNL
ANC
LAX
DEN
CHI
NYC
SCL
RIO
FEN
PDL
1. Pull the crown out to position 󱦯.
The second hand indicates the current city
setting; the chronograph minute hand indicates
the daylight saving time ON/OFF setting; and
the chronograph 1/20 second hand indicates the
daylight saving time auto/manual setting.
• Setting Daylight Saving Time Page 26
2. Rotate the crown to select the city for which
you want to indicate the time and date.
• Movethesecondhandtoselectthecityby
referring to "second hand position" in the city
indication table.
3. Push the crown in to position 0to finish
the setting.
◆ City indication table
Abbreviation City indication or second hand position Time difference Signal from...
LON *LONDON 0 sec. 0
Germany
PAR *PARIS 2 sec. +1
ATH *ATHENS 4 sec. +2
RUH RIYADH 7 sec. +3
DXB DUBAI 9 sec. +4
KHI KARACHI 11 sec. +5
China
DEL DELHI 14 sec. +5.5
DAC DACCA 16 sec. +6
BKK BANGKOK 18 sec. +7
BJS/HKG
BEIJING/HONGKONG 21 sec. +8

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• Thecityindicationsdisplayedonthewatchmaybedifferent,dependingonthe
model.
• Foracityindicatedby*, the daylight saving time indication and the standard time
indication are linked together.
• Foracityindicatedby**, the daylight saving time indication and the standard time
indication are linked together.
• ThetimedifferenceinthetableaboveisbasedonUTC.
• Thetimedifferencemaychangedependingonthecountryorarea.
Setting the World Time
Setting the World Time
Abbreviation City indication or second hand position Time difference Signal from...
TYO TOKYO 23 sec. +9
Japan
ADL ADELAIDE 25 sec. +9.5
SYD SYDNEY 28 sec. +10
NOU NOUMEA 30 sec. +11
AKL AUCKLAND 32 sec. +12
MDY MIDWAY ISLANDS 35 sec. −11
USA
HNL HONOLULU 37 sec. −10
ANC ** ANCHORAGE 39 sec. −9
LAX ** LOS ANGELES 42 sec. −8
DEN ** DENVER 44 sec. −7
CHI ** CHICAGO 46 sec. −6
NYC ** NEW YORK 49 sec. −5
Abbreviation City indication or second hand position Time difference Signal from...
SCL SANTIAGO 51 sec. −4
USA
RIO RIO DE JANEIRO 53 sec. −3
FEN
FERNANDO DE NORONHA 56 sec. −2 Germany
PDL *AZORES 58 sec. −1

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Setting Daylight Saving Time
◆Checking the time currently shown
0 1
1. Pull the crown out to position 󱦯.
The second hand indicates the current city
setting; the chronograph minute hand indicates
the daylight saving time ON/OFF setting; and
the chronograph 1/20 second hand indicates the
daylight saving time auto/manual setting.
• Checkthesettingsbyreferringtothetablein
the next page.
Setting Daylight Saving Time
◆ Daylight saving time
Daylight Saving Time is a system adopted in some countries/areas to gain an
extra hour of daylight during summer by advancing clocks by one hour. In an
area where the daylight saving time is in effect, the time signal contains a daylight
saving time check signal.
When receiving the daylight saving time check signal, this watch automatically
enables/disables (turns ON/OFF) the Daylight saving time setting.
• DaylightSavingTimecanbemanuallydisabledinanareawherethetimesignal
can be received but the daylight saving time is not in effect. (See pages 30and 31.)
• DaylightSavingTimecanbemanuallyenabledevenifthewatchisoutside
the area. (See pages 30and 31.)
• The daylight saving time rules may change depending on the country or area.
• A daylight saving time period is different depending on the country or area.
Daylight Saving Time indication
(ON/OFF) (Chronograph minute
hand)
Auto/Manual DST Indication
(Chronograph 1/20 second hand)

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Setting Daylight Saving TimeSetting Daylight Saving Time
Daylight Saving Time indication
(ON/OFF) (Chronograph minute hand)
Auto/Manual indication
(Chronograph 1/20 second hand) Description
Enable Daylight Saving Time (ON)
Enable Standard Time (OFF)
Automatic setting (12 o’clock
direction)
Automatically switch
between Daylight Saving
Time and Standard Time by
receiving the signal.
• When a daylight saving time
check signal is received, the
daylight saving time ON/
OFF setting is changed.
Manual setting (6 o’clock direction) Manually switch between
Daylight Saving Time and
Standard Time.
• Even if a daylight saving time
check signal is received, the
daylight saving time ON/OFF
setting is not changed.
• SwitchingON/OFFofDaylightSavingTime→(Seepage 30)
• Auto/manualswitchingofDaylightSavingTime→(Seepage 31)
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
60
30
1050
2040
ON
SMT
OFF
60
30
1050
2040
ON
SMT
OFF
To automatically enable
Daylight Saving Time when
using the watch in an area
where the time signal can
be received:
To enable Daylight Saving
Time manually when the
time signal can not be
received:
To prevent the watch from
automatically enabling
Daylight Saving Time
through signal reception:
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
60
30
1050
2040
ON
SMT
OFF
60
30
1050
2040
ON
SMT
OFF
60
30
1050
2040
ON
SMT
OFF
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
Turn the daylight Saving
Time ON/OFF setting to
ON when you want to
enable Daylight saving
time.
Set the auto/manual
setting to manual and turn
the daylight saving time
ON/OFF setting to OFF.
Set the auto/manual setting
to auto (the watch will
automatically change the
daylight saving time ON/OFF
setting when receiving a daylight
saving time check signal.)

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English
Setting Daylight Saving Time
◆Auto/manual adjustment of Daylight Saving Time
Ⓐ
Ⓑ
012
S
OK
RX
NO
M
T
W
T
F
S
S
OK
RX
NO
M
T
W
T
F
S
00
50
10
20
30
80
90
4060
70
1. Pull the crown out to position 󱦯.
The chronograph 1/20 second hand indicates the
current auto/manual setting.
2. Press and hold the lower right button Ⓐfor
two or more seconds.
Each time you hold down the lower right button
Ⓐfor two or more seconds, the chronograph 1/20
second hand points the 12 o’clock direction (auto)
and the 6 o’clock direction (manual) alternately.
3. Push the crown in to position 0to finish the
setting.
Setting Daylight Saving Time
◆Switching ON/OFF of Daylight Saving Time
Ⓑ
0 1 2
1050
20
40
ON
SMT
OFF
1. Pull the crown out to position󱦯 .
The chronograph minute hand indicates the current
daylight saving time ON/OFF setting.
2. Press and release the upper right buttonⒷ
to adjust the daylight saving time setting.
Each time you press and release the upper right
button Ⓑ, the chronograph minute hand points
SMT ON and SMT OFF alternately to indicate the
daylight saving time ON/OFF setting is switched.
3. Push the crown in to position 0to finish the
setting.
While manual setting is enabled, the daylight saving time
ON/OFF setting is not changed even when the watch
receives the time signal. Refer to the procedure described
on the previous page to change the ON/OFF setting.

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English
Notes on the time signal reception
There are three ways to receive the time signal:
The second hand indicates the reception result (OK/NO). (See page 41)
Methods Explanations
Automatic
reception
Receives the signal at 2:00 a.m. every day. If reception is unsuccessful, the
watch tries to receive at 3:00 a.m.
On demand
reception
Starts receiving the signal when you want to adjust the time and date.
(See page 43.)
Recovery
automatic
reception
Automatically receives the signal once after charging when the watch
stops due to insufficient charge.
Setting Daylight Saving Time
◆ The time shown for each city
The watch shows and memorizes Daylight Saving Time/standard time in
common for the following cities/time differences in each area so you do not need
to change them for each city/time differences.
• Ifyoushowthestandardtimemanuallyforacity/timedifferences,thewatch
always shows the standard time for that city/time difference regardless of the
time shown for others in the same area.
Areas receiving the signal from USA Areas receiving the signal from Germany
City Time difference City Time difference
Anchorage/ANC −9 London/LON 0
L.Angeles/LAX −8 Paris/PAR +1
Denver/DEN −7 Athens/ATH +2
Chicago/CHI −6 Azores/PDL −1
New York/NYC −5
For cities/time differences other than those listed above, the time shown last is memorized for each.
• Even when this watch receives the time signal successfully, the accuracy of the displayed
time will be dependent on the reception environment and internal processing.
• If the watch is not able to receive the signal, it will operate normally within an accuracy
range of ±15 seconds per month.

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35
English
◆ Note on the time signal
This watch receives the time signal from one of the five signal stations located in
four regions, and automatically corrects the time and date.
The signal stations are as follows:
Signal stations Kind of the
time signal
Fukushima station, Japan
JJY
Kyushu station, Japan
Fort Collins station, Denver, Colorado, USA WWVB
Mainflingen station, Southeast Frankfurt, Germany DCF77
Shangqiu station, Henan, China BPC
• Refertothemapsonpages 36 to 38 to see the locations of the signal stations and their
receivable area roughly.
Notes on the time signal reception
◆ When receiving the time signal
Remove the watch and place it on a stable surface where it can receive the signal
better, such as next to a window.
• 
The reception antenna is located at the 9:00
position of the watch. Place the watch with
the 9:00 position facing toward the station.
• Donotmovethewatchduringtimesignal
reception.
• Thewatchwillnotreceivethetimesignal
when in a low charge state as indicated by
the second hand moving in two second
increments (the insufficient charge
warning). Fully charge the watch before
reception.
Notes on the time signal reception

36
37
English
Notes on the time signal receptionNotes on the time signal reception
JJY (Japan):
Approx. 1,500km
Fukushima station
JJY (Japan):
Approx. 2,000 km
Kyushu station WWVB (USA):
Approx. 3,000km
Fort Collins station

38
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English
Notes on the time signal receptionNotes on the time signal reception
DCF77 (Germany):
Approx. 1,500km
Mainflingen station
BPC (China):
Approx. 1,500km
Shangqiu station
◆ Poor reception areas
It may be difficult to receive the time signal properly under certain environmental
conditions or in areas susceptible to radio noise.
• Extremelyhotorcoldlocations
• Insidevehicles
• Nearelectricalequipmentor
office appliances
• Nearhigh-tension
electrical lines, railway
overhead wires or
communication facilities
• Insidereinforcedconcrete
buildings, between tall
buildings, mountains, or
underground
• Near mobile phones that are in
use