Citizen Eco-Drive CAL 8651 User manual

INSTRUCTION MANUAL

2
CONTENTS
1. Features .................................................................................................................... 4
2. Before Using ............................................................................................................. 5
3. Names of Components ............................................................................................. 6
4. Setting the Time and Date ....................................................................................... 8
• Setting the Day
• Setting the Moon Phase
• Setting the Date and Month
• Setting the Time
5. Unique Features of Eco-Drive Watches ............................................................... 16
• Insufficient Charge Warning Feature
• Overcharging Prevention Feature
• Quick Start Feature
6. General Reference for Charging Times ............................................................... 20

3
English
7. Eco-Drive Watch Handling Precautions ............................................................. 22
• Charging Precautions
• Handling of Rechargeable Cell
• Only Use the Specified Rechargeable Cell
8. Replacing the Rechargeable Cell ........................................................................ 24
9. Precautions ............................................................................................................. 25
10. Specifications .......................................................................................................... 32

4
1. Features
This watch is a solar-powered watch equipped with a solar cell in the watch dial that
converts light energy into electrical energy to power the watch. It is also provided with
the features described below.
1. A rechargeable cell is used to store electrical energy.
• This rechargeable cell is a clean energy battery that does not contain mercury or
any other harmful substances.
2. This watch is a multi-hand watch that displays the date, day and month using hands
of the watch.
3. It also features an additional display of the moon phase.

5
2. Before Using
Before using, please fully charge your watch by exposing the solar cell (watch dial) to
light while referring to section 6 entitled "General Reference for Charging Times". Once
fully charged, the watch will continue to keep the correct time for about 6 months.
<For Optimum Use of this Watch>
In order to use this watch comfortably, try to keep the watch amply charged at all times.
There is no risk of overcharging no matter how often the watch is charged
(Overcharging Prevention Feature). It is recommended to charge the watch everyday.

6
3. Names of Components
Date hand
Hour hand
Day
Second hand Month
Button cover
Month correction
button
Minute hand
Date
Crown
Moon phase
Time correction position
(correction of time and day)
Date correction position (correction
of date and moon phase)
Normal position
* The illustrations shown in this manual may differ from the actual watch you have purchased.
This manual explains the procedure for using models having the pushbutton at the 3:00 position and
the crown at the 4:00 position. If your watch is of a different model, the same procedures can be
followed by assuming that the pushbutton and crown are at the positions shown in this manual.

7
Month Correction Button:
The month correction button is
located at the 3:00 position. There
are two types of the month
correction buttons. One is a screw
lock type and the other is a recessed
type. Be sure to refer to the section
that applies to your button type.
Identification can be made as
follows:
Screw lock type button
The screw lock type button has a flat smooth end that protrudes slightly from the end of the screw lock.
The recessed button type has a dimpled appearance at the end.
In the case the month correction button is of the screw lock type, operate the month correction after
first turning the “button cover” around the outside of the button to the left to loosen the screw. The
button is unable to operate properly if the screw is not adequately loosened. Once you have finished
operating the month correction button, turn the “button cover” to the right and tighten securely.
Please note that if the button cover is not adequately tightened, the button may be bent or it may be
accidentally depressed while wearing the watch causing the month to be changed inadvertently.
Recessed type button
The month is changed by simply pressing and releasing the recessed button with a narrow pointed
object. There is no screw lock mechanism to release for this type.
Screw lock type button Recessed type button

8
4. Setting the Time and Date
When setting the time and date simultaneously, the parameters are set in the order of
day, moon phase, date and month and finally time.
Setting the Day
• Pull crown out to
second position
• Turn to the right
Setting the Moon
Phase
• Pull crown out to
first position
• Turn to right
Check the
date that has
been set
Setting the Date
• Pull crown out to
first position
• Turn to left
When date is set
from the 3rd to
the 30th
When date is set
from the 31st to
the 2nd
Temporarily
set the date to
the 30th
Date
Day
Moon
phase
Month
Month
correction
button
Correction of time and day
Correction of date and moon phase

9
Setting the Date
• Pull crown out
to first position
• Turn to left
Setting the
Month
• Press the month
correction
button
Setting the
Month
• Press the month
correction
button
Setting the Date
• Pull crown out to first
position
• Turn to left
Setting the Time
• Pull crown out
to second
position
• Turn to right
Set the date to
today's date
Set the date to
today's date
Return the
crown to
the normal
position

10
[Procedure for Setting Time and Date]
Setting the Day
1. Pull the crown out to the time correction position (second position).
2. Turn the crown to the right (clockwise) and set the day to the current day.
• The displayed day begins changing at around 12:00 AM and finishes changing at
about 5:00 AM.
Setting the Moon Phase
1. Pull the crown out to the date correction
position (first position).
2. Turn the crown to the right (clockwise)
and set the current moon phase.
• The moon phase of a particular day can
be read from a newspaper and so forth.
Set the moon mark while referring to
"Reading the Moon Phase" following.
Date
Day
Moon
phase
Month
Month
correction
button.
Time correction position (correction of time and day)
Date correction position (correction of date and moon phase)
Normal position

11
<Reading the Moon Phase>
The moon phase display does not display the shape of the moon itself, but rather simply
indicates the moon phase. It can be used to provide an approximate indication of the
moon phase.
<For More Accurate Setting of the Moon Phase>
The moon phase can be set more accurately by setting the time during a new moon
(when the moon mark cannot be seen: moon phase: 0) or during a full moon (when the
moon mark is directly above in the 12:00 direction : moon phase: 15).
New moon
Moon age:0
(spring tide)
First quarter
Moon age:
approx.7
(neap tide)
Full moon
Moon age:
approx.15
(spring tide)
Last quarter
Moon age:
approx.22
(neap tide)

12
Setting the Date and Month
1. Pull the crown out to the date correction position (first position).
2. Set the date and month.
• The date hand turns to the right when the crown is turned to the left (counter-
clockwise).
• The month changes when the month correction button is pressed.
[When the Date is Set from the 3rd to the 30th]
(1) Turn the crown to the left and set the date hand to today's date.
(2) Press the month correction button and set the month to the current month.
[When the Date is Set to the 31st]
(1) Temporarily set the date to the 30th.
(2) Press the month correction button and set the month to the current month.
(3) Set the date to the correct date of the 31st.

13
[When the Date is Set to the 1st or 2nd]
(1) Temporarily set the date to the 30th.
(2) Press the month correction button to temporarily set the month to the month one
month before the month desired to be set.
Examples: Set the month to December when setting the month to January
Set the month to February when setting the month to March
(3) Set the date to the correct date of the 1st or 2nd.
The month changes to the current month simultaneous to the date changing from
the 31st to the 1st.
3. Return the crown to the normal position.

14
Setting the Time
1. Pull the crown out to the time correction position (second position) when the second
hand reaches the 0 seconds position.
2. Turn the crown to the right (clockwise) and set the time.
• The day changes immediately after about 5:00 AM. Set the time while paying
attention to AM and PM by referring to the time when the day has changed.
3. Return the crown to the normal position in synchronization with a telephone or other
time service.
[Helpful Hint for Setting the Time Accurately]
After first stopping the second hand at the 0 seconds position, advance the hour hand
and minute hand 4-5 minutes past the correct time and then turn it back in the counter-
clockwise direction to the correct time to accurately set the time.

15
[Notes]
• If the date is corrected when the time on the watch is between 9:00 PM and 12:00
AM, the date may not change on the following day. Avoid correcting the date
during this time.
• The calendar operates based on a 31-day month. Correct the date by turning the
crown to the left to set to the first day of the following month in months with less
than 31 days (months with 30 days and February).
• Avoid correcting the month when the date hand indicates a date from the 31st to
the 2nd. If you want to correct the month during this time, wait until the date
hand is outside the range of the 31st to the 2nd. Then reset the date hand to the
correct date.
• When turning the crown to the left (counter-clockwise) when correcting the time
or day, the changing of the date may change a day late during normal use.

16
5. Unique Features of Eco-Drive Watches
[Normal Time Display]
If insufficiently charged
When charged
The time is incorrect since the
watch has stopped as a result of being
insufficiently charged. Reset the
watch to the correct time.
When the watch
becomes
insufficiently
charged, the watch
display changes as
shown below.

17
[Insufficient Charge
Warning Display] [Watch Stopped]
If the capacity of the
rechargeable cell becomes
low without charging
Sufficiently charge the watch by exposing to light until the second hand returns
to 1-second interval movement.
2 seconds
The second hand changes to
2-second interval movement
2 seconds

18
<Insufficient Charge Warning Feature>
When the watch becomes insufficiently charged, the
second hand begins 2-second interval movement to
indicate that the watch is insufficiently charged.
• Although the watch continues to run normally at this
time, the watch will stop after about 4 days have passed
since the watch has become insufficiently charged.
Charge the watch by exposing to light to return to the original 1-second interval
movement. Sufficiently charge the watch even after it has returned to 1-second
interval movement to ensure that it can be used comfortably. There is no risk of
overcharging since the watch is provided with an overcharging prevention feature.
• Although the watch will begin to run again when exposed to light after it has stopped
due to being insufficiently charged, since the time is incorrect, reset the time after
sufficiently charging the watch.
2 seconds
2 seconds

19
<Overcharging Prevention Feature>
When the rechargeable cell becomes fully charged as a result of exposing the watch dial
(solar cell) to light, the overcharging prevention feature is activated automatically to
prevent the battery from being charged further. Consequently, there is no degradation in
the performance of the solar cell or rechargeable cell no matter how often the watch is
charged. This lets you expose the watch to light without worrying about overcharging.
<Quick Start Feature>
The watch will stop running if it is not charged at all. The watch hands will begin to
move after about 10 seconds when the watch is exposed to light. (The time until the
hands begin to move varies depending on the model of the watch and the intensity of the
light.) However, please note that the watch may stop again since it will not be
adequately charged if the light is blocked at this time.