Citizen H38 Series User manual

109
***** Notice *****
All repairs performed on this watch are to be performed at the
CITIZEN.
When desiring to have your watch repaired or insepected, please
contact the Citizen Service Center either directly or through the
store where you purchased your watch.
English

111
This radio controlled watch receives standard radio
waves broadcast from the People’s Republic of China
• Only standard time radio waves (BPC) broadcast from the People’s
Republic of China are received.
• The radio controlled watch has no effect on the human body or
medical equipment.
Fully charge your watch before use
by exposing it to sufficient light
The second hand will move at 2-second intervals
when the watch is insufficiently charged. Charge
your watch as indicated in “Guide to Charging
Time” (p.146).
• Charge the watch in direct sunlight for a long
time once a month.

113112
Part Names
* The illustrations shown in this manual may differ from the actual watch you
have purchased.
Button (B)
Button (A)
Reception status: OK Receiving: RX Reception status: NO
Reception status
Minute hand
Crown
Hour hand
Second hand
• Depending on the particular watch model, some indicate the reception status with
the long side of the second hand, while others indicate with the short side of the
second hand.
Long side of the hand
Short side of the hand
Reception status

114 115
1. Your Watch ..................................................................................... 116
2. Operating the Crown ...................................................................... 117
3. Before Use ...................................................................................... 118
• Checking the Reference Position ...................................................... 120
4. Functions List ................................................................................. 122
Radio Wave Reception
5. For Best Reception ........................................................................ 124
6. Poor Reception Areas .................................................................... 125
7. Receiving the Radio Waves .......................................................... 126
• Automatic Reception ........................................................................ 126
• On Demand Reception ..................................................................... 126
• Recovery Automatic Reception ......................................................... 127
• Confirming the Reception Status ....................................................... 128
• Reception Area Guidelines ............................................................... 130
Setting the Time Manually
8. Setting the Time ............................................................................. 132
9. Correcting the Time Difference ..................................................... 134
10. Correcting the Reference Position ............................................... 136
Solar Power
11. Solar Power Function .................................................................... 138
12. Characteristics of the Solar Powered Watch ............................... 140
• Power Saving Function ..................................................................... 142
• Insufficient Charge Warning Function ................................................ 144
• Overcharging Prevention Function .................................................... 145
• Guide to Charging Time .................................................................... 146
• Handling Your Solar Powered Watch ................................................. 148
Troubleshooting ................................................................................... 150
Precautions ............................................................................................. 154
13. Specifications ..................................................................................... 160
Table of Contents

117116
1. Your Watch
iAutomatic reception function: Every morning at 2 a.m. and 4 a.m. the watch
will automatically receive the radio wave and adjust the time.
However, if reception is successful at 2 a.m., automatic reception will not be
performed at 4 a.m.
iOn demand reception function: The radio waves can be received at any time
of the day to adjust the time.
* Not possible when the radio wave is interrupted
iEco-Drive function: This solar powered Eco-Drive watch is equipped with a
solar power function for powering the watch by converting light energy into
electric energy. The watch incorporates a power saving function that reduces the
electrical power consumption when the watch face is not exposed to light.
iTime difference adjustment function: The watch incorporates a convenient
time difference adjustment function (±27 hours).
A simple method is available for changing to the local time if you are going to
an area in a different time zone.
2. Operating the Crown
There are two models available for the crown: normal and screw lock.
<Operating the Screw Lock Crown>
<Moving the Hands Continuously>
When the crown is pulled out to the position 1
and quickly turned to the left or right (more than 2
clicks), the hands will rotate continuously.
To stop the continuous movement of the hands,
turn the crown to the left or right by one click.
* A gentle “click” can be felt by the fingertips.
• Turn the crown
to the left.
Using the side of your finger, quickly
turn the crown by two or more clicks.
Turn to the left
• When the screw lock is
released, the crown
pops out a little and
stops in the normal
position. After
finishing the operation,
lock the crown again.

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3. Before Use
Check the
reception
status by
pressing the
lower right
button (A).
The second
hand indicates
a reception
status of OK
The second
hand indicates
a reception
status of NO
Refer to “On
Demand Reception”
(p.126) to perform
the radio wave
reception.
Your watch is
correctly
receiving the
standard time
radio wave.
It is ready to use.
Check the movement of
the second hand
The second hand is
moving at 2-second
intervals.
The second hand is
moving at 1-second
intervals.
OK: Reception
successful
RX: Receiving
NO: Reception
failed
Button (A)
Charge the watch sufficiently
by placing it in direct
sunlight as indicated in
“Guide to Charging Time”
(p.146).
The second hand is moving
at 1-second intervals.

121120
Before using the watch, check that the hands are aligned with
“0”, similar to when setting weighing scales
iThe reference position may become misaligned when the
watch is exposed to strong magnetism, static electricity or
impacts.
Even if radio waves are received, the correct time will not be
indicated unless the watch hands are aligned to the correct
reference position. Check that the hands are properly aligned
with “0”.
Examples of magnetic products that can affect the watch.
• Health products (for example, medical necklaces and waist bands that have
magnetic fields)
• Refrigerators (magnetic part of the door)
• Electromagnetic cookers
• Bags (with magnet fasteners)
• Mobile phones (speaker part)
Keep the watch away from items similar to those above.
Checking the Reference Position iCheck that the reference position aligns
correctly in the 12:00:00 position.
1. With the crown in the normal position, press the
upper right button (B) continuously for about 5
seconds.
2. Release the upper right button (B) when the
second hand begins to move.
The hands will move rapidly, stopping at the
reference position recorded in the watch memory.
Correct reference position
12:00:00
Crown
Button (B)
Check the
reference
position
Press the upper right button (B), or leave
the watch for 2 minutes, and the hands will
return to their normal movement.
<Reference position
is correct>
iThe hands are aligned with the
12:00:00 position.
<Reference position is incorrect>
iThe hands are not aligned with the 12:00:00 position.
Pull out the crown and correct the reference position. (p.136)

123122
4. Functions List
Function Button or crown operation Hand movement
On demand
reception
(p.126)
Press the lower right button (A) for
more than 2 seconds and release
when the second hand stops in the
RX position.
• The second hand will stop at RX and reception will begin.
Confirm reception
status
(p.128)
Press the lower right button (A)
once. • The second hand will stop at OK or NO.
Correcting the
Time Difference
(p.134)
Press the upper right button (B)
once, turn the crown to set the time
difference, and press the upper right
button (B) once more to complete
the operation.
• The second hand will stop at the 12:00 position. (If a time difference setting has been
made, it will stop at the position appropriate for the time difference.)
• The second hand at the 12:00 position indicates time difference of ±0 hours. Turn the
crown to set the time difference. One step of the second hand indicates a one hour time
difference.
Setting the time
manually
(p.132)
Pull out the crown to position 1.
Second hand, minute hand, hour hand:
• Turn the crown to the right to rotate the second hand clockwise once and move the
minute hand ahead by 1 minute.
• Turn the crown to the left to rotate the second hand counterclockwise once and move the
minute hand back by 1 minute.
Turn the crown quickly to move the hour and minute hands continuously.
Button (A)
Button (B)
Crown

5. For Best Reception
There are three kinds of reception: automatic reception, on demand reception,
and recovery automatic reception. When the radio wave has been properly
received, your watch will automatically adjust the time. When reception is
complete, each of the hands will move either clockwise or counterclockwise to
the received time.
Remove the watch from your wrist and
place on a stable surface near a window
where the radio wave can be easily received,
pointing the 9:00 position in the direction of
the radio wave transmitter.
Do not move the watch during reception.
• Reception may be difficult due to the surroundings or metal shielding.
When inside a building, place the watch as close to a window as possible for good
reception.
• Radio wave reception may be difficult during the hours around sunrise and sunset. Avoid
attempting to receive radio waves during these times.
125
6. Poor Reception Areas
It may be difficult to properly receive the radio waves under certain environmental
conditions or in areas susceptible to radio noise.
124
jExtremely hot or cold
locations
jNear high-tension electrical
lines, railway overhead wires
or communication facilities
jInside vehicles, including
cars, trains and aero planes
jNear TVs, refrigerators,
computers, fax machines and
other electrical equipment or
office appliances
jNear cellular phones
that are in use
jInside reinforced concrete
buildings
Between tall buildings or
mountains, or underground
Radio Wave Reception

2. Press the lower right button (A) for more than 2
seconds and release it when the second hand stops
at the RX position.
3. When reception is complete, the second hand will
leave the RX position and return to normal
movement.
Referring to “Confirming the Reception Status”
(p.128), check the reception status.
Recovery Automatic Reception
iIf the watch stops due to insufficient charging, expose
the watch to sunlight to recharge it. When the watch
is recharged sufficiently, it will automatically receive
the radio wave once. Please remember to keep the
watch charged to prevent this situation from occurring.
jIf the lower right button (A) is pressed for more than 2 seconds during reception,
the reception will be cancelled and the hands will return to their normal movement.
127126
7. Receiving the Radio Waves
Automatic Reception
iPlace the watch in a stable location near a window where the radio wave can be
easily received with the 9:00 position pointing towards the transmitter. The watch
will receive the radio waves at 2 a.m. every day. If the radio wave cannot be
received at 2 a.m., it will try again automatically at 4 a.m.
On Demand Reception (Manual Reception)
Radio waves can be received at any time.
* Not possible when the radio wave is interrupted
Use this function when automatic reception is impossible due to changes in the
reception environment.
(Depending on the weather or noise conditions, reception can take up to 15
minutes.)
1. Remove the watch from your wrist and place on a stable surface near a window
where the radio wave can be easily received, pointing the 9:00 position in the
direction of the radio wave transmitter.
The second hand stops
at the RX position.
Button (A)