Citizen AT9010-52E User manual

INSTRUCTION MANUAL

1
English
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.
Visit the Citizen website (http://www.citizenwatch-global.com/) to view
visual guides for operation of your watch.
Some models may be equipped with external features (calculation scale,
tachymeter, etc.). Visual guides for operation of such external features can
also be found on the website.
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.
The engraving position may differ
depending on watch model.
Engraving position example

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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 76 to 85) 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
Safety precautions (IMPORTANT)

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English
■ 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.
Safety precautions (IMPORTANT)

4
Before using this watch
After unpacking, the following must be done before using the watch:
◆Checking the power reserve Page 19
Check the charge level of the watch.
◆
Setting the World Time Page 22
Select the city for which you want to indicate the time and date.
◆
Checking the time signal reception Page 57
Check the result of the time signal reception.
This watch has a rechargeable cell which is charged by
exposing the dial to light.
Expose the dial to light regularly to charge the watch.
For details of charging, see pages 12 to 21.

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English
Before using this watch
◆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.
◆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.

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◆How to use a specially designed crown/push button
Some models are equipped with a specially designed crown and/or push button to
prevent accidental operation. Please refer to the following chart for use.
Screw down crown and screw down push button
Unlock the crown 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.
Before using this watch

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English
Recessed buttons
Press the button with a narrow-tipped object such
as a wooden toothpick.
Before using this watch

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Table of contents
Features ……………………………………………………………… 10
Component identication ………………………………………… 11
Charging your watch………………………………………………… 12
Setting the World Time ……………………………………………… 22
Setting Summer Time (SMT) ……………………………………… 31
Setting the Alarm Time……………………………………………… 43
Notes on the time signal reception ………………………………… 48
Checking the time signal reception………………………………… 57
Receiving the time signal manually (On demand reception) …… 59
Adjusting the time/calendar manually …………………………… 61
Checking and correcting the current reference position ………… 66

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English
Table of contents
Troubleshooting …………………………………………………… 70
Eco-Drive watch handling precautions …………………………… 76
Water resistance …………………………………………………… 78
Precautionary items and usage limitations ……………………… 80
Specications………………………………………………………… 86

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Features
* “Eco-Drive” is Citizen original technologies.
“Radio controlled watch”
Receives a time signal from one of the
five signal stations located in four regions
and automatically adjusts the time and
calendar.
“World Time”
Easy to see the time and calendar
of cities all over the world.
“Eco-Drive”
No need for periodical changing
of rechargeable cells. The watch is
charged by light.
“Perpetual calendar”
No need for date correction at the
end of each month.
The leap year is also updated
automatically.
“Alarm”
An alarm sounds when the
set time is reached.
“Dual time”
Times of two time zones can be
shown at the same time.

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English
Component identification
OK
RX
NO
S
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24
12
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24
18 6
S
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* The illustrations in this instruction manual may differ from the actual appearance of your watch.
* A solar cell is placed under the dial.
Function hand (Day of the week/
Charge level/Summer time)
Minute hand
Upper right
button (B)
Date indicator
Crown
Lower right
button (A)
Local time minute hand
Alarm
(ON/OFF)
Hour hand
24-hour hand
Reception result
indication
(OK/RX/NO)
Second hand
Local time 24-hour hand
City indication

12
This watch has a rechargeable cell which is charged by exposing the dial to light, such
as direct sunlight or fluorescent lamps.
After taking off the watch, put it in a location where the dial is exposed to bright light,
such as by a window.
The watch can be charged effectively when
the dial is exposed to sunlight as shown in the
figure.
For optimal performance, be sure to:
• Charge the watch by exposing it to direct
sunlight for five to six hours at least once a
month.
• Avoid leaving the watch in a dark place for
long periods of time.
Charging your watch

13
English
Charging your watch
• If the watch is obscured from light by long sleeves frequently, supplemental
charging may be needed to ensure continual operation.
• Do not charge the watch at high temperature (about 60°C/140°F or higher).
• Set the watch to the Manual Power Save mode when not using for a long time.
→ Page 17

14
Charging your watch
◆When the watch reaches a low charge state (insufficient charge
warning function)
When the power reserve becomes low, the second hand moves once every two
seconds. This is the insufficient charge warning function. Be sure to fully charge
your watch.
• When the watch is sufficiently charged, the second hand will move normally.
• If you do not charge the watch for
2days or longer after the insufficient
charge warning movement has begun,
the watch will be depleted of all
power and stop.
The time and date are correctly shown
even when the watch is in the two-
second interval movement. However,
watch settings cannot be done. Also, an
alarm operation is not available.

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English
Charging your watch
◆Charging time by environment
Below are the approximate times required for charging when exposing the watch dial to light
continuously. This table is for general reference only and does not represent exact charging times.
Environment Illuminance
(lx)
Charging time (approx.)
To work for
one day
To start working
normally when the
cell is discharged
To become fully
charged when the
cell is discharged
Outdoors (sunny) 100,000 5 minutes 2 hours 30 hours
Outdoors (cloudy) 10,000 11 minutes 2 hours 40 hours
20 cm (7-7/8 inches)
from a fluorescent
lamp (30W)
3,000 40 minutes 3.5 hours 130 hours
Interior lighting 500 4 hours 15 hours 920 hours
Maximum run time from full charge: Approx. 6 months (in normal operation),
approx. 8 months (with power save feature)

16
Charging your watch
◆Power save feature
When the watch is not exposed to light for 30 minutes or longer, such as when
you set the watch in a dark place, the second hand automatically stops to save the
power.
However, the watch continues to work internally.
• When the crown is in position 1 or 2, the power save feature will not activate.
• To operate the power save feature manually, set the watch to the manual power
save mode. → Page 17
◆To cancel the power save feature
The power save feature is cancelled in the following conditions and the second
hand moves to the current time position:
• The watch dial is exposed to light to start charging
• The crown is pulled or any button is operated

17
English
◆Manual power save feature
The manual power save feature is used to reduce the power consumption with
manual operation.
1. Pull the crown out to position 2.
The hour and minute hands of the Local time move
to indicate the alarm time.
2. Press and hold the upper right button Ⓑfor
two or more seconds.
The second hand moves to the 0 second position
and the entire hands stop and the manual power
save operation starts.
• Even though all the hands stop at the manual power save operation, the watch
operation continues within the watch memory.
• The watch does not receive a radio signal automatically at the manual power save
operation.
Charging your watch
Ⓑ
012

18
◆To cancel the manual power save feature
1. Ensure that the crown is in position 0.
The manual power save feature is cancelled and the hands move to indicate the current
time.
Charging your watch

19
English
Charging your watch
◆Checking the power reserve
Checking the current power reserve.
1. Ensure that the crown is in position 0.
2. Press and release the lower right button Ⓐ.
The function hand shows the power reserve level.
• For details of the power reserve level indication,
refer to the next page.
3. Press and release the lower right button Ⓐ
to finish the check procedure.
• Normal operation will resume if the button is not
pressed for approx. 10 seconds.
Ⓐ
01 2