Citizen F900 User manual

INSTRUCTION MANUAL

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.
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.
Engraving position example
The engraving position may
differ depending on watch
model.
1

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 98 to 111 )
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
2

■ 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.
Safety precautions
3

4
■
Light-Level Indicator
Indicates current power generation amount in 7 levels.
It can be used as a reference for choosing a good charging place.
■
Eco-Drive
Never needs a new battery. This watch is fueled by light.
Features
■
Satellite Wave-GPS
Receives location and time information sent from
GPS satellites and adjusts the time and calendar on
the watch automatically.

5
* “Eco-Drive” is an original technology of Citizen.
Features
■
World time
Indicates the time around the world by choosing one of 40 time zones.
■
±5-second average monthly accuracy
Keeps high accuracy without time signal reception.
■
Dual time
Shows two different times in parallel—home time and local time.
The two times can be interchanged easily.
■
Chronograph
Measures up to 24 hours in 1/20 second increments.
■
Alarm
Sounds at the time set every day.
■
Perpetual calendar
No need for monthly and leap-year date correction until February 28, 2100.

6
CONTENTS
Before using this watch..........................
10
Band adjustment........................................ 11
Protective stickers....................................... 11
How to use a specially designed crown/button........... 12
Component identification........................
14
About dual time indication .............................. 16
Changing the mode .............................
17
Checking the power reserve and power generation
amount ......................................
24
Checking the power reserve............................. 25
Checking power generation amount
(Light-Level Indicator) ................................. 28

7
CONTENTS
Checking the reception result of the satellite signal..
31
Setting the world time ..........................
33
Checking the time zone setting for the home time ....... 34
Obtaining location information from satellite signals ..... 40
Setting the time zone manually. . . . . . . . . . . . . . . . . . . . . . . . . . 42
Interchanging the home time and local time............. 44
Receiving time information ......................
45
Setting daylight saving time .....................
52
Using the chronograph ..........................
56
Using alarm....................................
58
Continued on the next page

8
CONTENTS
Charging your watch ............................
62
Information on satellite signal reception ...........
68
Checking and adjusting leap second setting ............. 73
Checking and adjusting the rollover number setting ..... 76
Adjusting the time and calendar manually .........
80
Checking and correcting the reference position .....
86

9
Troubleshooting ................................
90
Eco-Drive watch handling precautions .............
98
Water resistance...............................
102
Precautionary items and usage limitations ........
105
Specifications .................................
112
CONTENTS

10
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
62
.
• Especially, satellite signal reception is power-consuming. Be
sure to keep your watch sufficiently charged.
After unpacking, the following must be done before setting the time and calendar
(page 45 or 80).
1Checking the current power reserve (page 24)
2Setting the world time (page 33)
3Checking leap second setting (page 73)
Before using this watch

11
Before using this watch
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.
Consult your nearest authorized Citizen service center.
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.

12
Before using this watch
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.

13
Recessed button
Press the button with a non-marring narrow-tipped object such as a wooden
toothpick.
• Metal objects may cause marring or scratching of
the button.
Before using this watch

14
N
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P
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F
T
T
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S
W
.0
.6
.4
.8
.2
24
12
8
4
16
20
SMT
OFF
ON
LON
PAR
AKL
TBU
MDY
HNL
ANC
LAX
NOU
SYD
ADL
TYO
BJS
BK K
ATH
RUH
DXB
K H I
DEL
DAC
PDL
FEN
R I O
SCL
NYC
CHI
DEN
0
+12
+13
+14
-
12
-
11
-
10
-
9
-
8
+11
+10
+9.5
+9
+8
+7
+1
-
1
-
2
-
3
-
4
-
5
-
6
-
7
+2
+3
+4
+5
+5.5
+6
7
Component identification
• The illustrations in this instruction manual may differ from the actual appearance
of your watch.
Minute hand
Mode hand
Hour hand
Function hand
Second hand
Dual time indication
Button
Button
Crown
Hands and buttons

15
Component identification
N
O
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K
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P
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L
A
F
F
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N
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S
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L
U
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S
F
T
T
M
S
W
.0
.6
.4
.8
.2
24
12
8
4
16
20
SMT
OFF
ON
LON
PAR
A K L
TBU
MDY
HNL
ANC
LAX
NOU
SYD
ADL
TYO
BJS
BK K
ATH
R U H
DXB
K H I
DEL
DAC
PDL
F E N
R I O
SCL
NYC
CHI
DEN
0
+12
+13
+14
-
12
-
11
-
10
-
9
-
8
+11
+10
+9.5
+9
+8
+7
+1
-
1
-
2
-
3
-
4
-
5
-
6
-
7
+2
+3
+4
+5
+5.5
+6
7
• A solar cell is under the dial.
RX-TME/RX-GPS: Reception-
in-progress indication
OK/NO: Reception result
indication
Mode indication
Place name/
time zone
Date indication
Alarm setting indication
(ALM ON/OFF)
Indications of the
function hand
• Day of week
• Power reserve level
(5 levels)
• Daylight saving
time
(SMT ON/OFF)
Indication
Continued on the next page

16
Component identification
About dual time indication
This watch is equipped with the dual time function: two times are indicated in
parallel.
Home time Local time
The time shown by the hour/
minute/second hands and day of
week/date indications.
Time shown by the dual time indication.
• Indications differ depending on the mode of the watch.
For details, see “Changing the mode” (page 17).
• Local time can show the time other than home time.
• Time is in 24-hour format.
• Local time move in conjunction with home time.
N
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N
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H
R
M
L
A
T
E
S
I
L
L
U
T
C
S
F
T
T
M
S
W
.0
.6
.4
.8
.2
24
12
8
4
16
20
SMT
OFF
ON
MDY
H N L
SYD
ADL
TYO
ATH
R U H
DXB
K H I
FEN
R I O
SCL
NYC
7
0
+12
+13
+14
-
12
-
11
-
10
-
9
-
8
+11
+10
+9.5
+9
+8
+7
+1
-
1
-
2
-
3
-
4
-
5
-
6
-
7
+2
+3
+4
+5
+5.5
+6
24
12
8
4
16
20
Dual time indication

17
Changing the mode
This watch features six different modes (functions). The method to change the
mode and indication for each mode are explained below.
Changing the mode
1Pull the crown out to position .
The second hand points to 30 second and stops.
2Rotate the crown to change the mode.
• Turn the crown so that the mode hand
points to the marker of the desired mode
securely.
3Push the crown in to position to finish
the procedure.
The watch changes indication according to the selected
mode.
Continued on the next page
T
M
E
C
H
R
M
L
A
T
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S
I
L
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C

18
Changing the mode
Indication in each mode (when the crown is in position )
TME (ordinary time) mode
N
O
O
K
R
X
G
P
S
R
X
T
M
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M
L
A
F
F
O
N
O
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C
H
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M
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A
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E
S
I
L
L
U
T
C
S
F
T
T
M
S
W
.0
.6
.4
.8
.2
24
12
8
4
16
20
SMT
OFF
ON
LON
PAR
AKL
TBU
MDY
HNL
ANC
LAX
NOU
SYD
ADL
TYO
BJS
BK K
ATH
RUH
DXB
K H I
DEL
DAC
PDL
FEN
R I O
SCL
NYC
CHI
DEN
0
+12
+13
+14
-
12
-
11
-
10
-
9
-
8
+11
+10
+9.5
+9
+8
+7
+1
-
1
-
2
-
3
-
4
-
5
-
6
-
7
+2
+3
+4
+5
+5.5
+6
7
A B C
Hand and indication Content
Hour, minute and second
hands
Home time
Date indication
Date (home time)
A Function hand
Day of week (home
time)
B Dual time indication
Local time
C Mode hand
TME

19
Changing the mode
LLI (Light-Level Indicator) mode
Mode for checking the level of power generation amount.
N
O
O
K
R
X
G
P
S
R
X
T
M
E
M
L
A
F
F
O
N
O
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H
R
M
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A
T
E
S
I
L
L
U
T
C
S
F
T
T
M
S
W
.0
.6
.4
.8
.2
24
12
8
4
16
20
SMT
OFF
ON
LON
PAR
AKL
TBU
MDY
HNL
ANC
LAX
NOU
SYD
ADL
TYO
BJS
BK K
ATH
RUH
DXB
K H I
DEL
DAC
PDL
FEN
R I O
SCL
NYC
CHI
DEN
0
+12
+13
+14
-
12
-
11
-
10
-
9
-
8
+11
+10
+9.5
+9
+8
+7
+1
-
1
-
2
-
3
-
4
-
5
-
6
-
7
+2
+3
+4
+5
+5.5
+6
7
A B C
Continued on the next page
Hand and indication Content
Hour, minute and second
hands
Home time
Date indication
Date (home time)
A Function hand
Power reserve level
B Dual time indication
Local time
C Mode hand
LLI