Citizen JY8035-04E User manual

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Table of Contents
1. Your Watch ................................................................................................. 9
2. Before Use ................................................................................................ 12
• Checking the Reference Position......................................................... 14
3. Basic Watch Operations.......................................................................... 16
Radio Signal Reception
4. Radio Signal Reception ........................................................................... 18
5. Poor Reception Areas.............................................................................. 23
6. Display during Reception........................................................................ 24
7. Confirming Reception Status.................................................................. 26
8. Reception Area Guidelines...................................................................... 28
9. World City Display.................................................................................... 34
10. Charge Level Display............................................................................... 40
English

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Operations in Each Mode
11. Changing Mode ........................................................................................ 42
12. Using Home Time and World Time......................................................... 44
13. Using Daylight Saving Time.................................................................... 46
14. Setting the Time (TME) ............................................................................ 48
15. Setting the Calendar (CAL)...................................................................... 52
16. Using the Timer (TMR)............................................................................. 56
17. Using the Chronograph (CHR)................................................................ 60
18. Using the World Time Setting (WT-S)..................................................... 62
19. Using the World Time Alarm (AL-1 and 2) ............................................. 66
20. Using the Receive Setting (RX-S)........................................................... 68
21. LED Lights ................................................................................................ 72
22. Resetting Your Watch.............................................................................. 72
23. Adjusting the Reference Position........................................................... 74
Using the Slide Rule Bezel............................................................................ 78
Solar Power
24. Solar Power Function .............................................................................. 92
25. Characteristics of the Solar Powered Watch......................................... 94
A. Power Saving Function....................................................................... 96
B. Insufficient Charge Warning Function............................................... 98
C. Overcharging Prevention Function.................................................... 99
D. Guide to Charging Time.................................................................... 100
E. Handling Your Solar Powered Watch............................................... 102
Troubleshooting
Radio Signal Reception Function......................................................... 104
Eco-Drive................................................................................................. 108
Precautions................................................................................................... 110
26. Specifications......................................................................................... 116

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Congratulations and Thank You for your selection of a CITIZEN Eco-Drive watch.
To get the most out of your purchase, please be sure to read this manual and keep it
on hand for reference.
Once fully charged by exposure to light, your watch will give you years of
enjoyment and reliability.
Notice
All repairs performed on this watch are to be performed at the CITIZEN.
When desiring to have your watch repaired or inspected, please contact the Citizen
Service Center either directly or through the store where you purchased your watch.
Please use this watch after it has been sufficiently
charged by exposure to light.
If the second hand of the watch is moving at two-second intervals, this indicates the
watch is insufficiently charged. To ensure proper operation, the watch should be fully
charged by placing the watch under direct sunlight for about eight (8) hours. We
recommend the watch keep a high charge level to ensure optimum operation.
Charge your watch as indicated in “Guide to Charging Time” (p. 100).

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Note: To assist in the explanation, all parts of the digital display are shown in the illustration.
Part Names (2): Digital Displays
[Digital display 2] [Digital display 1]
World city name
Morning: A
Afternoon: P
Chronograph
measurement mark
Timer measurement mark
Alarm setting mark
Daylight saving time setting
mark
Home city name
Insufficient charge
warning mark
World city time
Hour/minute/second
• The illustrations shown in this manual may differ from the actual watch you have purchased.
Part Names (1)
Charge level indicator/
radio wave reception
indicator
Home time hour hand
Digital display 2
(Displays the home
city)
Home time second
hand Mode hand
UTC hour hand UTC minute hand
Home time minute hand
Button (B)
24-hour hand
Crown
Button (A)
Digital display 1
(Displays world city/
world time)
Crown for turning
the outside scale

WW1. Your Watch
World Time Eco-Drive Radio Controlled Watch
<Radio Signal Reception Function>
This watch is a radio controlled watch, which receives the standard time radio waves that are
broadcast from radio wave transmitters in four regions, Japan, the USA, Europe (Germany) and
China, and uses these waves to automatically correct the time and date. (p. 18)
iAutomatic reception: The watch will automatically receive the radio wave up to three
times a day, at 2 a.m., 3 a.m. and 4 a.m., and adjust the time and date accordingly.
The 4 a.m. automatic reception can be changed to any time of the day.
iOn demand reception: The radio wave can be received at any time of the day to adjust
the time and date.
In the event that a radio signal cannot be received, the watch can be manually set and will
operate keeping time within +/- 15 seconds per month.
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Part Names (3): Radio Wave Reception Display
NO: Signal reception failed RX: Reception standby H, M, L: Reception level/
reception status
Modes where reception is
possible: CAL, TME and
RX-S
JPN : JJY (Japan)
USA : WWVB (USA)
EUR : DCF77 (Germany)
CHN: BPC (China)

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Important Points Regarding Radio Wave Reception
There are two methods to receive radio signals during normal operation, Automatic and
On Demand.
The internal unidirectional antenna may be weakened by geography or building
structures, which may require the user to place the watch near a window.
When receiving radio waves:
* Remove the watch from your wrist
* Face the 9:00 position of the watch towards a window
* Place the watch on a stable surface
* Do not move the watch during this process. Movement of the watch may cause
incomplete reception. During radio reception, the second hand of the watch moves in
reception level.
* When reception is complete, the watch will return to movement at one-second
intervals.
Reception can take from about 2 minutes to a maximum of 15 minutes.
<World Time Function>
iUTC (Coordinated Universal Time), the time and date of 43 cities (or regions) from around
the world and one city (any can be set) can be displayed and easily called up. It is
convenient when traveling overseas on business or vacation.
Daylight saving time can also be set. (p. 46)
<Solar Power Function>
This is a multi-functional Eco-Drive watch, which is equipped with a solar power function for
powering the watch by converting light energy into electric energy.
iCharge level display function: This function displays the charge level in four grades, to
give an approximate indication of how much the secondary battery is charged. (p. 40)
iPower saving function: The watch is equipped with two power saving functions.
If the watch face is not exposed to light for 30 minutes or longer, all the LCD display
sections turn off (Power saving 1). If the watch face is then not exposed to light for one
week or longer, the hands are stopped in order to minimize the watch’s power consumption
(Power saving 2). (p. 96)

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Check the
reception status.
• Pull out the crown to
position 1.
• Turn the crown to
align the mode hand
with TME.
• Return the crown to
the normal position.
• Press the lower right
button (A) at the
4:00 position. (p. 26)
The second
hand indicates
a reception
status of H, M
or L
The second
hand indicates
a reception
status of NO
Refer to “On Demand
Reception” (p. 20) to
perform the radio wave
reception.
Your watch is
correctly receiving
the standard time
radio wave.
It is ready to use.
If you are unable to
receive radio waves,
please inquire to the
Citizen Service Center.
WW2. Before Use
[Insufficient charging]
Charge level
indicator
[Fully charged]
Check the movement of
the second hand.
The second hand is
moving at 2-second
intervals or is stopped.
The second hand is
moving at 1-second
intervals.
Charge the watch
sufficiently by placing it in
direct sunlight as indicated
in “Guide to Charging
Time”(p. 100).
NO: Signal
reception failed RX: Reception
standby Reception level/
reception status
H:High
M:Middle
L:Low
Crown
Button (A)
Mode hand

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1. Pull the crown out to position 1 and turn to align
the mode hand with CHR (chronograph mode).
2. Pull out the crown to position 2.
• The hands will move rapidly, stopping at the
reference position recorded in the watch
memory.
Correct reference positions
Charge level indicator: CHN
UTC hour and minute hands: 12:00
Hour, minute and second hands: 12:00:00
24-hour hand: 12:00
3. If the reference position is correct, the check is
now complete. Press the crown back into its
normal position.
• If a position is incorrect, refer to step 3 and later
in “Adjusting the Reference Position” and adjust
it to the correct position. (p. 74)
[Checking the Reference Position]
Before using the watch, confirm 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.
Hour, minute
and second
hands
UTC hour and
minute hands
24-hour
hand
Charge level
indicator
Mode hand

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3.
Set the home time.
If the home time is correct,
(1) Set the time manually (p. 48)
(2) Set the time by receiving the radio
wave (p. 20)
Caution:
If the home city is set to a city that
is outside the reception area, the
radio wave cannot be received.
Set the time manually.
4.
Set digital display 1.
The world time or date can be
displayed on digital display 1.
Also, the mode can be switched
in order to use the alarm, timer
or chronograph. (p. 42)
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WW3. Basic Watch Operations
* The watch receives the radio wave from the radio wave transmitter located in the
home city’s region.
1.
Check the
charge level.
(p. 40)
2.
Set the home city.
If the city in which you are
situated is displayed in
digital display 2,
(1) Pull out the crown to
position 1 and turn to align
the mode hand with TME.
(2) With the crown pulled out to
position 1, press button (A)
or (B) to call up the home
city in digital display 1.
(3) Press button (A) and button
(B) at the same time to
display the home city in
digital display 2.
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Home time
hour hand Home time
minute hand
Digital display 1
Home time second hand
Home city
(Digital display 2)
Button (A)
Button (B)
Crown

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Automatic reception
• It is not necessary to operate buttons during automatic reception.
• The watch will automatically receive the radio wave every day at 2
a.m., 3 a.m. and 4 a.m.
• The 4 a.m. reception can be changed to any time of the day. (p. 68oo71)
• Reception can be set to OFF. (p. 68oo71)
<Receiving the radio signals>
1. Remove the watch from your wrist and place on
a stable surface in a location, such as near a
window, from which radio waves can be easily
received, pointing the 9:00 side (reception
antenna position) in the direction of the radio
wave transmitter.
2. The watch will automatically receive the radio
wave every day at 2 a.m.
WW4. Radio Signal Reception
Three types of radio signal reception are possible: automatic reception, on demand
reception and recovery automatic reception.
There are three modes where reception is possible: time (TME), calendar (CAL) and
receive set (RX-S). The watch cannot receive signals in any other mode.
Display the home city in digital display 2 when receiving the radio wave.
• Reception is not possible unless the crown is in the normal position.
• If the home city is “UTC”, reception is not possible.
• Reception is not possible during chronograph or timer measurement.
• The reception level may change depending on the surrounding environment. While
referring to reception level (H, M or L), change the watch location, direction and angle
to try to receive the radio wave.
• When the watch is receiving the radio wave, as a general rule, all of the hands will
stop. To check the time, hold the lower right button (A) for 2 seconds to cancel radio
wave reception. The hands will then return to the current time.
• Even while the radio wave is being received, the second hand will continue to rotate to
align the minute hand with the current time. This shortens the time it takes to set the
correct time.
An antenna for receiving the radio
signals is located inside the watch
(on the 9:00 position).