Citizen J290 Service manual

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

2
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 3, 4, and
58 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
■ 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.

Before using this watch
3
About altitude measurement
This watch does not function as a specialized altitude-measuring equipment
certified by any authority or regulating standards. Use the indicated altitude only
as a reference.
WARNING
Do not use the altitude measurement function of this watch in the
following cases:
•When actions or situation judgments involving risks are required.
•When rapid changes in altitude occur such as when skydiving or hang-
gliding.
•When the situation requires special treatments.
CAUTION
Altitude may be measured improperly in the following cases:
•When air temperature changes sharply.
•When atmospheric pressure largely changes accompanying with changes
of whether conditions.
•When the function is used in places where atmospheric pressure is
conditioned constant (such as in an airplane).

Before using this watch
4
About the compass
This watch does not function as a specialized compass instrument certified by any
authority or regulating standards. Use the indicated compass direction only as a
reference.
WARNING
Do not use the compass function of this watch in the following cases:
•When precise directional indication is required for navigational or other
activities with serious risks.
CAUTION
Compass direction may be measured improperly in the following cases:
•When the watch is not kept level.
•When the surrounding magnetic field is disturbed.
•When air temperature changes sharply.
•When surrounded by reinforced concrete wall or things made of iron.
•When electric cables, electric trains or electric products exist around.
When storing the watch
Avoid places or things with strong magnetism when storing this watch.

5
Before using this watch
After unpacking, the following must be done before using the watch:
•Checkingthepowerreservesee page 16
For optimal performance, ensure your watch is fully charged prior to use. Refer
to pages 12 to 15 for charging procedures and times.
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 15.

Before using this watch
6
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stickersBe 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.

Before using this watch
7
Screw down crown/button
Unlock the crown/button prior to operate your watch.
UnlockLockScrew 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 buttons
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.

8
Features
Eco-Drive (solar powered)
Never needs a new battery.
This watch is fueled by light.
Compass function
Indicates compass direction
by measuring geomagnetism
with the built-in magnetism
sensor
Altitude measurement
Indicates altitude by
measuring atmospheric
pressure with a sensor
•“Eco-Drive” is an original technology of
Citizen.
CONTENTS
Parts identification (when
measuring altitude) ...........
10
Parts identification (when
using the compass).............
11
Chargingyourwatch...........
12
Checkingthecurrentpowerreserve...............................
16
Measuring altitude..............
18
Using the compass...............
24
+
-

9
Setting the time..................
26
Adjusting the calendar ........
27
Calibrating
altitude indication .............
28
Calibrating
compass indication ............
32
Checkingandcorrectingthereference position..............
44
Using the scale ....................
48
Troubleshooting..................
50
Eco-Drive(solarpowered)watchhandling precautions.........
58
Water resistance..................
62
Precautionary items and
usage limitations ...............
65
Information.........................
72
Specifications......................
76

10
Parts identification (when measuring altitude)
•Some models are not equipped with the scale and the scale rotation crown.
+
-
ft.
0
2000
-1000
x 10000 ft.
8000
4000
6000
0
1
2
3
W
E
ft.
(-100)
(-200)
(-300)
(-400)
(-500)
(-600)
(-700)
(-800)
(-900)
0
500
900
400
800
300
700
200
600
100
1
0
0
(
-
9
0
0
)
(
+
5
0
0
)
S
(
-
5
0
0
)
f
t
.
W
E
6
0
0
(
-
4
0
0
)
7
0
0
(
-
3
0
0
)
8
0
0
(
-
2
0
0
)
9
0
0
(
-
1
0
0
)
2
0
0
(
-
8
0
0
)
3
0
0
(
-
7
0
0
)
4
0
0
(
-
6
0
0
)
Lower left button ( )
Upper left button ( )
10 000 ft hand
1 000 ft hand
25 ft hand
Atmospheric
pressure sensor
Scale rotation
crown
Scale
Date indicator
Second hand
Hour hand
Minute hand
Crown