Citizen G910 Instruction Manual

1
Table of contents
Thank you for your purchase of this Citizen watch. Before using the watch, read this instruction manual carefully to ensure correct use.
Parts identification . . . . . . . . . . . . . . .
2
Notes on modes of this watch . . . . . . .
4
of the hands . . . . . . . . . . . . . . . . . .
6
Adjusting the watch . . . . . . . . . . . . . . .
8
Adjusting the date . . . . . . . . . . . . . . .
13
Adjusting the year/month . . . . . . . . .
14
Using the chronograph . . . . . . . . . . .
16
Checking the time by sounds
(Minutes repeater) . . . . . . . . . . . .
18
Adjusting the reference position . . .
20
Using the tachymeter . . . . . . . . . . . .
22
Notes on charging your watch . . . . .
24
Troubleshooting . . . . . . . . . . . . . . . . .
27
Precautions . . . . . . . . . . . . . . . . . . . . .
30
Maintenance . . . . . . . . . . . . . . . . . . . .
38
Information . . . . . . . . . . . . . . . . . . . . .
39
Specifications . . . . . . . . . . . . . . . . . . .
40
2
60
4
00
300
2 5 0
120
130
140
15
0
160
180
200
220
80
85
90
9
5
1
00
11
0
65
70
75
T
A
C
H
Y
M
E
T
E
R
DEC
MON
TUE
WED
THU
FRI
SAT
SUN
60
60
30
25
20
35
40
55
50
45
05
10
15
30
45
L.Y
1
2
3
12
6
10 2
84
15
60 24
12
618
30
20
10
40
50
JUN
AUG
A
PR
OCT
F
EB
Parts identification
• The illustrations in this instruction manual may differ from the actual appearance of your watch.
Day indicator
Day indication
Hour hand
Passed year indication
Lower left button (C)
Month hand/Chronograph
minute hand
Chronograph second hand
Minute hand
Upper right button (B)
24-hour hand
Crown
Second hand
Lower right button (A)
Date indication
Tachymeter
Year hand/
Chronograph hour hand
3
How to use the screw down crown and screw down push button
Some models feature a screw down crown and screw down push button. Locking the crown and button prevents accidental operation. Unlock them when you want to operate the watch.
Unlock Lock
Screw down crown
Rotate the crown counterclockwise until it releases from the case.
After pushing the crown in to the position
0
, rotate the crown clockwise while pushing it in, and tighten firmly.
Screw down push button
Rotate the locking screw counterclockwise, and loosen until it stops.
Rotate the locking screw clockwise, and tighten firmly.
• Unlocking is not required when a standard crown and button are equipped.
4
60
400
3
00
2 5 0
120
130
140
150
160
180
2
0
0
2
2
0
80
85
90
9
5
10
0
110
65
70
75
T
A
C
H
Y
M
E
T
E
R
DEC
MON
TUE
WED
THU
FRI
SAT
SUN
60
60
30
25
20
35
40
55
50
45
05
1
0
15
30
45
L
.Y
1
2
3
12
6
10 2
84
15
60 24
12
618
30
20
10
40
50
JUN
AU
G
AP
R
OCT
F
EB
Notes on modes of this watch
There are two modes for hand indications in this watch; one is for checking the calendar and the other is for using the chronograph.
For checking the calendar—Normal indication mode
Day indicator and indication
(common)
Hour hand (common)
Year hand and indication
Lower left button (C) Pressing and holding this button for two or more seconds will engage the chronograph indication mode.
Minute hand (common)
24-hour hand (common)
Second hand (common)
Date indication (common)
Month hand
5
60
400
3
00
2 5
0
120
130
140
150
160
180
2
0
0
2
2
0
80
85
90
9
5
10
0
110
65
70
75
T
A
C
H
Y
M
E
T
E
R
DEC
MON
TUE
WED
THU
FRI
SAT
SUN
60
60
30
25
20
35
40
55
50
45
05
1
0
15
30
45
L
.Y
1
2
3
12
6
10 2
84
15
60 24
12
618
30
20
10
40
50
JUN
AU
G
AP
R
OCT
F
EB
For using the chronograph—Chronograph indication mode
Day indicator and indication
(common)
Hour hand (common)
Chronograph hour hand
Lower left button (C) Pressing and holding this button for two or more seconds will return the normal indication mode.
Minute hand (common)
24-hour hand (common)
Second hand (common)
Date indication (common)
Chronograph second hand
Chronograph minute hand
• In this manual, all the explanations start from the normal indication mode of this watch.
6
Checking the reference position of the hands
If the reference position is incorrect, the time and calendar are not indicated properly. See the next page to confirm the correct reference position.
1.
Ensure that the crown is in position 0 when the watch is in the normal indication mode.
2.
Press and hold the lower right button (A) for two or more seconds.
The current time of sub-watch is shown. For in­depth information on the sub-watch, see page 8.
• Sub-watch is working though the hands do not move.
3.
Press the lower right button (A) again.
The current reference positions of the following items are shown: year hand, month hand, chronograph second hand, and date indication.
4.
Press any button to finish the checking.
• The normal indication mode resumes in two minutes when no operation is done.
A
1
8
0
200
2
20
A
1
8
0
200
2
20
012
Crown position
7
60
4
00
30
0
2 5 0
120
130
140
1
50
160
180
200
220
80
85
90
9
5
100
11
0
65
70
75
T
A
C
H
Y
M
E
T
E
R
DEC
MON
TUE
WED
THU
FRI
SAT
SUN
60
60
30
25
20
35
40
55
50
45
05
10
15
30
45
L.Y
1
2
3
12
6
10 2
84
15
60 24
12
618
30
20
10
40
50
JUN
AUG
A
PR
OCT
FEB
60
4
00
30
0
2
5
0
12
0
0
50
85
90
9
5
100
T
E
C
40
1
5
2
4
J
UN
AUG
PR
FEB
40
O
N
TH
U
A
T
SUN
1
Notes on the correct reference position
The correct reference position for all the items is shown below. If items are not in the correct reference position, refer to page 20 for the adjustment.
Year hand
(indicating 12:00)
Date indication (indicating 1)
Month hand (indicating 12:00)
Chronograph second position
(indicating 12:00)
8
Adjusting the watch
This watch consists of two built-in clocks—the main-watch and the sub-watch. Each controls the functions of the hands in a different manner. For details on the assignment of the functions to the main-watch and the sub-watch, refer to the table to the right. The main-watch and sub watch are adjusted separately. If the sub-watch is not synchronized to the main-watch, the tones of the minutes repeater will not synchronize with the time on the main-watch (large hour and minute hands).
Hands and indications Main-watch Sub-watch
Year/Minute/Second hands
Day indication
24-hour hand
Year hand and indication
Month hand
Date indication
Minutes repeater
• This watch shows the year indication as the number of years passed since leap year. It is not the actual year.
9
For the most accurate setting, first adjust the sub-watch and then synchronize the main-watch with the time on the sub-watch.
1.
Pull the crown out to position 2 when the
second hand indicates 12:00.
Both the main-watch and the sub-watch stop, and the current time of the sub-watch is shown.
012
Crown position
Continued to the next page
0
120
130
140
150
160
180
200
2
20
8
0
85
90
95
1
00
11
0
DEC
60
30
2
5
20
35
40
4
5
1
5
30
45
L.Y
1
2
3
12
6
10 2
84
15
12
618
30
2040
JUN
AUG
APR
OCT
F
E
B
0
0
2
85
90
95
00
5
40
15
45
4
5
40
J
UN
AUG
F
E
B
e.g. When it is 10:09.
Minute hand of the sub-watch
Hour hand of the
sub-watch
10
2.
Adjust the hour and minute hands by pressing the lower or upper right button (A or B).
• Each time you press the lower or upper right button (A or B), the minute hand moves counterclockwise or clockwise. The movement of the hour hand is linked with the minute hand.
• If you press and hold the button, the minute and hour hands move continuously.
• The chronograph second hand indicates the a.m. or p.m. reference. When the hand points to 12, a.m. time is indicated. When the hand points to 1, p.m. time is indicated.
• While adjusting, year/month/date are not changed.
A
1
8
0
200
2
20
B
400
30
0
012
Crown position
60
65
T
A
C
H
Y
M
E
T
E
R
THU
FRI
SAT
SUN
60
5
5
05
1
65
T
T
H
U
AT
SU
N
5
60
65
T
A
C
H
Y
M
E
T
E
R
THU
FRI
SAT
SUN
60
5
5
05
1
65
T
T
HU
AT
SU
N
5
In the morning (a.m.)
In the afternoon (p.m.)
11
3.
Adjust the time and the day of the main­watch by rotating the crown.
• The movement of the hour hand/24-hour hand/day indicator is linked with the minute hand.
• You may rapidly advance the day by repeatedly rotating the crown to move the hour and minute hands between 10:00 p.m. and 1:00 a.m.
60
400
300
2 5
0
2
2
0
80
8
65
70
75
T
A
C
H
Y
M
E
T
E
R
DEC
MON
TUE
WED
THU
FRI
SAT
SUN
60
55
50
45
05
10
15
L.Y
1
2
3
12
10 2
84
60 24
12
618
30
20
10
40
50
60
400
300
2
5
0
2
85
T
T
15
MON
TUE
A
T
SUN
3
8
4
20
40
Hour hand
Continued to the next page
Second hand
24-hour hand
Minute hand
Day indicator
Crown
012
Crown position
12
4.
Push the crown in to position 0 to start the watch.
Both the main-watch and the sub-watch start simultaneously, and the second hand starts to move.
• The second of the sub-watch starts from 0-seconds when the crown is pushed in to position 0.
012
Crown position
13
Adjusting the date
1.
Pull the crown out to position 1.
The watch does not stop.
2.
Adjust the date by pressing the lower or upper right button (A or B).
• Each time you press the lower or upper right button (A or B), the date goes backward or forward day by day.
• The date will change continuously by pressing and holding either button. To stop the movement, press the lower or upper right button (A or B).
3.
Push the crown in to position 0.
012
012
B
400
30
0
A
1
8
0
200
2
20
Crown position
Crown position
• If the date changes at noon, adjust the time of the sub-watch referring to page 8.
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