Citizen C660 User manual

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(A)
(B)
(C)

1
Please charge the watch fully before use
by exposing it to light.
When the watch does not operate according to the
instruction manual, it is insufficiently charged.
Charge the watch for at least 3 hours approximately
20 cm (8 in) away from a fluorescent or incandescent
lamp (30 W) as a light source. When charging, do
not place the watch too close to the light source to
prevent the watch from becoming too hot.
* When charging the watch under direct sunfight,
charge for at least 50 minutes.
English

Contents
1. Features ................................................................................................... 4
2. Before Using the Watch .......................................................................... 5
3. Names of Components and Major Functions ....................................... 6
4. Switching Modes (Display Functions) ................................................. 10
5. Checking 0-Position of Each Hand ...................................................... 11
6. Accessing Times and Dates of Major Cities around the World ........ 15
7. Switching between Analog Time and Digital Time ............................. 17
8. Hand Evacuation Function ................................................................... 19
9. Setting the Time .................................................................................... 20
10. Setting the Date ..................................................................................... 24
11. Using the Race timer ............................................................................ 27
12. Using the Chronograph ........................................................................ 31
13. Using the Timer ..................................................................................... 34
14. Using the Alarm ..................................................................................... 36
15. Using Zone Setting ............................................................................... 39
16. About All-Reset ..................................................................................... 40
17. Functions Unique to Solar Power Watches ........................................ 42
· Insufficient Charge Warning Function
· Time Setting Warning Function
· Overcharging Prevention Function
· Power Save 1
· Power Save 2
18. General Reference for Charging Times .............................................. 51
19. Notes Regarding Handling of this Watch ............................................ 53
20. Precautions ............................................................................................ 54
21. Specifications ........................................................................................ 60
2 3

1. Features
This watch is a combination solar-powered watch that contains a solar cell in its
face that drives the watch hands, race timer, chronograph, alarm, and numerous
other functions by converting light energy into electrical energy.
It is also equipped with convenient functions including a power save mode that
reduces power consumption when light is not shining on the solar cell, UTC
(Coordinated Universal Time) and a world timer indicating the time and dates of
30 major cities around the world.
4 5
2. Before Using the Watch
This watch is a solar-powered watch. Before using, allow light to shine
onto the watch so that it is sufficiently charged.
In this watch a secondary battery is used to store electrical energy. This
secondary battery is a clean energy battery that does not contain mercury or
other toxic substances. Once fully charged, the watch will continue to run for a
maximum of 4 years without additional charging (when in the power save 2
mode).
[Proper use of this watch]
To use this watch comfortably, make sure to recharge it before it stops running
completely. There is no risk of overcharging the watch no matter how often it is
recharged. (Overcharging Prevention Function).
It is recommended that the watch be recharged everyday.

7
3. Names of Components and Major Functions
6
Name/Mode Time Calendar Race timer Chronograph
1. Mode hand TME CAL RACE CHR
2. Hour hand Always indicates “hours”
3. Minute hand Always indicates “minutes”
4. Second hand Always indicates “seconds”
5. 24-hour hand Always indicates “24-hour time” in conjunction with hours and minutes
6. Function hand Always stopped at 0-position
(standard position)
8. Digital display 2 City name, SMT (when set to
daylight savings time)
7. Digital display 1
Hours,
minutes,
seconds
Month, date,
day
Indicates the remaining
race time (minutes,
seconds)
Indicates the auto-
chronograph measured time
display (minutes, seconds)
Timer Alarm-1 Alarm-2 Zone setting
TMR AL-1 AL-2 SET
Always indicates “hours”
Always indicates “minutes”
Always indicates “seconds”
Always indicates “24-hour time” in conjunction with hours and minutes
Always stopped at 0-position (standard position)
Indicates the timer’s
remaining time
(minutes, seconds)
Hours, minutes, alarm (ON/OF) City name (SET/OFF)
Timer set time (minutes)
Indicates the
chronograph
measured time
(minutes, seconds,
1/100 seconds)
Indicates the remaining
race time (minutes)
Indicates the auto-
chronograph measured
time display (minutes)
Indicates the
chronograph
measured time
(minutes)
Indicates the remaining
race time (seconds)
Indicates the auto-
chronograph measured
time display (seconds)
Indicates the
chronograph
measured time
(seconds)
Race timer set time
(minutes)
Chronograph measured
time (hours) City name

98
Name/
Mode Time Calendar Race timer Chronograph
Normal
position
1st
click
Normal
position
1st
click
Normal
position
1st
click
Mode switching
Time correction Calendar
correction
Adjust to 0
position
Changing between cities
Switching location to be corrected
Changing between cities
Switching SMT (ON/OF)
Switching between
‘seconds’ correction and
‘24-hour time’
Hand evacuation
1st
click
Timer Alarm-1 Alarm-2 Zone setting
Mode switching
Timer set time correction
Start/stop
------
Return flight / reset
------
Hand evacuation
Hand evacuation
Alarm time correction
Changing between cities
Switching location to be corrected
Changing between cities
Switching alarm (ON/OF)
Changing city name
Changing city name
------
Changing city name
Changing city name
(SET/OFF)
9. Crown
A.
Button (A)
C.
Button (C)
------
Hand evacuation
Normal
position
------------
Race Timer
set time
correction
Start/stopStart/stop
Switching
location to be
corrected
------
Split/reset
Return flight /
reset
B.
Button (B)
Crown
position

5. Checking 0-Position of Each Hand
Before using this watch perform the following procedure to check that the 0-
position (standard position of each hand) is set correctly to ensure that the
functions of the watch operate properly.
< 0-Position Check>
1. While in the normal position, turn the crown to set the mode hand to the
chronograph [CHR] mode.
2. Pull the crown out to the first click (0-position
correction position)
· The second hand, minute hand, hour hand, 24-
hour hand and function hand rapidly advance to
the 0-position (12 o’clock position).
Note:
· When each hand is not at the 0-position,
perform the “0-position correction” procedure. If
this 0-position is out of alignment, each hand will
not indicate the correct position.
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4. Switching Modes (Display Functions)
In addition to the time and date modes, this
watch is also equipped with a race timer, a
chronograph and a timer mode and alarm-1
and 2 modes. Switch modes by turning the
crown. Check the current mode using the
mode hand.
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TME
Time
CAL
Calendar
RACE
Race timer
CHR
Chronograph
SET
Zone setting
AL-2
Alarm-2
AL-1
Alarm-1
TMR
Timer
Mode hand
< Switching the mode>
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< 0-Position Correction (Setting to the Watch Standard Position) >
... Setting when the 0-position is out of algnment
When setting the 0-position of each hand, always make sure to turn the crown to
the right (clockwise) to set each hand to its 0-position in the clockwise direction.
1. Turn the crown while in the normal position to set the mode hand to the
chronograph [CHR] mode.
2. Pull the crown out to the first click (0-position correction position).
·The second hand, minute hand, hour hand and 24-hour hand rapidly advance
to the position stored in the memory.
·“F-H”lights in digital display 2 indicating that the watch is in the function hand
correction state.
3. Turning the crown to the right (clockwise) allows corrections to be made in the
positive direction. Turning the crown continuously allows corrections to be
made continuously. Turn the crown to the left or right to stop.
4. Pressing button (A) switches the correction location between “HR”(24-hour
hand, hour hand, minute hand), “SEC”(second hand) and “F-H”(function
hand) each time the button is pressed.
5. Turn the crown to the right (clockwise) to align each hand at the 0-position.
Although correction can be made in the negative direction by turning the
crown backwards (counter-clockwise) always make sure to set the 0-position
12
by turning the crown in the right direction (clockwise) to ensure that the
standard position is set correctly.
·The 24-hour hand is corrected in conjunction with the hour hand and the
minute hand.
6. After performing correction, return the crown to the normal position.
·After correcting the 0-position of each hand, reset the time, calendar, and
other modes before using the watch.
Note:
·None of the buttons on the watch operate during movement of each hand.
Operate the buttons only after the hands have stopped moving.

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Function hand
Minute hand/hour hand/
24-hour hand
Second hand
<Normal Chronograph
Display>
Crown
pulled out to
the first click
Crown
returned to
normal
position
<0-Position (Standard Position)
Correction State>
(A)
(A)
(A)
6. Accessing Times and Dates of Major Cities
around the World
The time or date of major cities pre-registered in this watch can be easily
accessed by pressing the buttons.
<Access Procedure>
1. Turn the crown to set the mode hand to the [TME] time or [CAL] calendar
mode.
2. When button (A) is pressed, the times or dates of major cities in the scrolling
UP direction are displayed each time the button is pressed.
3. When button (B) is pressed, the times or dates of major cities in the scrolling
DOWN direction are displayed each time the button is pressed.
·Pressing button (A) or (B) continuously causes scrolling to advance rapidly.

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7. Switching between Analog Time and Digital Time
This watch is able to switch between analog time display and digital time
display.
<Switching Procedure>
1. Turn the crown to set the mode hand to the time [TME] mode.
2. Press buttons (A) and (B) simultaneously.
3. After a confirmation tone sounds, the watch switches the time of the city
displayed by analog display and the time of the city displayed by digital
display.
·If buttons (A) and (B) are simultaneously pressed when in the calendar [CAL]
mode, the watch switches the date of the city displayed by analog display and
the date of the city displayed by digital display (the times are switched at this
time as well).
* Cities (regions) in which daylight savings time is used, are indicated with the Kmark, while those in
which it is not, are indicated with an M.
* The time difference and use of daylight savings time of each city are subject to change by each
individual country.
<Cities and UTC Time Differences Pre-registered in this Watch>
Display
on watch City name
Time
difference
Daylight
savings
time
UTC Universal time constant ±0 ---
Display
on watch City name
Time
difference
Daylight
savings
time
TYO Tokyo +9 M
LON London ±0 KSYD Sydney +10 K
PAR Paris +1 KNOU Noumea +11 M
ROM Rome +1 KAKL Auckland +12 K
CAI Cairo +2 KHNL Honolulu
- 10 M
IST Istanbul +2 KANC Anchorage - 9K
MOW Moscow +3 KLAX Los Angeles - 8K
KWI Kuwait +3 MDEN Denver - 7K
DXB Dubai +4 MCHI Chicago - 6K
KHI Karachi +5 MMEX Mexico City - 6M
DAC
DEL New Delhi +5.5 MNYC New York - 5K
BKK
Dacca +6 MYUL Montreal - 5K
SIN
Bangkok +7 MCCS Caracas - 4M
HKG
Singapore +8 MRIO Rio de Janeiro - 3K
PEK Beijing +8 M
Hong Kong +8 MBUE Buenos Aires - 3M
Scrolling UP
Scrolling DOWN

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Pressing buttons (A)
and (B) simultaneously
Analog time: 10:10 AM (Tokyo: TYO)
Digital time: 8:10 PM (New York: NYC)
Analog time: 8:10 PM (New York: NYC)
Digital time: 10:10 AM (Tokyo: TYO)
Press
Press
8. Hand Evacuation Function
(When reading the time is difficult because the analog hands
cover the digital display)
The hand evacuation function allows the hour hand and the minute hand to be
evacuated to the 12 o’clock position.
<Hand Evacuation Method>
1. Pressing button (C) for at least 2 seconds moves
the hour hand and the minute hand to the 12
o’clock position.
<Canceling Hand Evacuation>
1. Pressing button (C) moves the hour hand and the
minute hand back to the position for normal time
indication.
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correction state.
·When the crown is turned to the right (clockwise) in the “hour”or “minute”
correction states, correction is made in the positive direction. Turning the
crown continuously allows “hours”or “minutes”to be corrected continuously.
When turning the crown to the left (counter-clockwise), correction can be
made in the negative direction.
·Switching “12H/24H time”is performed by pressing button (B).
5. After corrections have been completed, return the crown to the normal
position.
9. Setting the Time (Time is corrected by digital display)
When digital time is corrected, the second, minute, hour, and 24 hour hands of
the analog time are corrected automatically in conjunction with digital time. After
correcting the digital time, when the crown is returned to the normal position, the
second, minute, hour, and 24 hour hands rapidly advance to the present time in
conjunction with the digital time set.
1. Turn the crown and set the mode hand to the time [TME] mode.
2. Press either button (A) or button (B) to access the city to be corrected.
3. When the crown is pulled out to the first click (time setting position), the watch
enters the time correction state.
·The second hand rapidly advances to and stops at the 12 o’clock position.
·The minute, hour, and 24 hour hands stop at the time when pulling out the
crown to the first click.
4. When button (A) is pressed, the location to be corrected changes each time it
is pressed. Select the location to be corrected. (The location that is flashing is
the location that can be corrected.)
·When button (B) is pressed in the [SMT] daylight savings time correction
state, daylight savings time can be set (ON) or canceled (OF).
·“Seconds”return to zero when button (B) is pressed in the “seconds”

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Notes:
1. Daylight savings time can be set for each city.
2. When the time is set for any one city, the times of other cities, including UTC
time, are corrected automatically.
3. When changing the time, the crown and buttons do not respond even if
operated. Ensure that the required operation is performed correctly by first
checking that the time has changed.
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Switching daylight
savings time
Seconds
Minutes
Hours
Switching 12H/24H time
indication
<Normal Time Display>
Crown
pulled out to
first click
Crown
returned to
normal
position
<Time Correction State>
(A)
(A)
(A)
(A)
(A)

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Month
Date
Year
<Normal Date Display>
Crown pulled
out to first
click
Crown
returned to
normal
position
<Date Correction State>
(A)
(A)
(A)
10. Setting the Date (Date is corrected by digital display)
1. Turn the crown and set the mode hand to the calendar [CAL] mode.
2. Press either button (A) or button (B) to access the city to be corrected.
3. When the crown is pulled out to the first click (date setting position), the watch
enters the date correction state.
4. When button (A) is pressed, the location to be corrected changes each time it
is pressed. Select the location to be corrected by making it flash.
·When the crown is turned to the right (clockwise), correction is made in the
positive direction. When the crown is turned to the left (counter-clockwise)
correction is made in the negative direction. Turning the crown continuously
allows corrections to be made rapidly.
5. After corrections have been completed, return the crown to the normal
position.

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11. Using the Race timer
The race timer is able to set the time for 5 minute intervals for times between 60
and 10 minutes, and to 6, 5, 4, 3, and 2 minutes and 1 minute.
<Setting the Race Timer>
1. Turn the crown and set the mode hand to the [RACE] race timer.
2. When the crown is pulled out to the first click (race timer setting position), the
watch enters the minute correction state.
·The Race Timer Setting Time (minutes) flashes in digital display-2.
3. Turn the crown to set the Race Timer Setting
(minutes).
·When the crown is turned to the right,
correction is made in the positive direction.
When the crown is turned to the left correction
is made in the negative direction.
·The function hand moves automatically in
conjunction with the Race Timer Setting Time
(minutes).
4. After corrections have been completed, return
the crown to the normal position.
<Race Timer Set Display>
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Notes:
1. When the date is set for any one city, the dates of other cities, including UTC time,
are corrected automatically.
2. The year can be set from 2001 to 2099.
3. The day is corrected automatically when the year, month and date are set.
4. Since this watch is equipped with an auto-calendar function, it is not necessary to
correct the date at the end of the month.
5. When the date has been set to a non-existent date, (for example February 30) the
watch automatically displays the 1st day of the following month when the watch is
returned to the normal display.
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Race timer ‘minutes”flashes.

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* After the remaining time is finished, the watch
automatically switches to the auto chronograph.
Race timer timing
display Race timer stops
Auto chronograph
timing
Auto chronograph
stops
(A) (A)
(A)
(A)
(A)
(B)
(B)
(B)
(B)
Time Up
<Timing Using the Race Timer>
1. When pressing button (A), the race timer starts
counting down from the time set while the
second hand starts moving counter clockwise.
2. When pressing button (A) during the countdown,
the race timer stops. When pressing button (A)
once more while the race timer is stopped, the
race timer starts counting again.
·When pressing button (B) during the countdown,
the race timer is initialized and starts counting
down again from the beginning.
3. When pressing button (B) while the race timer is
stopped, the race timer returns to the initial
setting time.
·When pressing buttons, the eration confirmation tone sounds to confirm
operation.
·After starting, a warning tone is sounded when 11, 10, 6, 5, 4, 3 or 2 minutes
or 1 minute remain or when 50, 40, 30, 20, 10, 5, 4, 3 or 2 seconds or 1
second remain.
However, when 11, 10, 6, 5, 4, 3 or 2 minutes or 1 minute are set, the warning
signal for the remaining time in question does not sound.
4. When timing of the set time is finished, the Time Up tone sounds, while
simultaneously the auto chronograph starts operating.
Press
Press
<Race Timer Initial
Setting Display>
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(A)
(B)

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12. Using the Chronograph
The chronograph is able to measure and display time to a maximum of 23
hours, 59 minutes, 59.99 seconds in 1/100th second units. After 24 hours have
elapsed, the chronograph automatically returns to the chronograph reset display.
<Chronograph Measurement>
1. Turn the crown to set the mode hand to the
chronograph [CHR] mode.
·The second hand rapidly advances to the 12
o’clock position and stops.
2. Pressing button (A) repeatedly starts and stops
the chronograph each time it is pressed.
·When starting the chronograph, the second
hand starts moving clockwise in conjunction.
3. Split time is displayed for 10 seconds when
button (B) is pressed during chronograph
measurement.
<Normal Chronograph
Display>
<Using Auto Chronograph Measurement>
When the race timer measurement is finished, upon finishing simultaneously it
changes to the auto chronograph that starts counting down automatically.
The auto chronograph measures to a maximum of 23 hours, 59 minutes, 59
seconds in 1 second units. After timing is finished, the chronograph
automatically returns to the race timer initial setting display.
1. Pressing button (A) during measurement
repeatedly starts and stops the auto chronograph
each time it is pressed.
·When starting the auto chronograph, the second
hand starts moving clockwise in conjunction.
2. Pressing button (B) during measurement of the
auto chronograph returns the auto chronograph to
the race timer initial display.
3. Pressing button (B) while the chronograph is stopped returns the chronograph
to the race timer initial setting display.
·The second hand rapidly advances to the 12 o’clock position and then stops.
·The function hand rapidly advances to the race timer initial setting position
and then stops.
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Press
Press
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Press
Press
(A)
(B)
(A)
(B)

3332
·The ‘SPL”mark flashes in digital display-1 during split time display. In addition
the second hand also stops moving.
4. Pressing button (B) while the chronograph is stopped, returns the
chronograph to the chronograph reset display.
·The second and function hand (used as the minute hand for the chronograph)
rapidly advance to and stops at the 12 o’clock position. Measurement
Split time
Stops
(A)
*1
(A)
(A)
(B)
(B) *2
(B)
(A)*1
Chronograph reset
*1: Returns automatically after timing for 24 hours
*2: Returns automatically after 10 seconds
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13. Using the Timer
The timer can be set to a maximum of 99 minutes in 1 minute units. When the
set time has elapsed, a tone indicating that the set time is up, sounds for about 5
seconds, after which the timer returns to the timer initial setting display.
<Setting the Timer>
1. Turn the crown to set the mode hand to the timer
[TMR] mode.
2. Pull out the crown to the first click (timer setting
position) to enter the “minutes”correction state.
·“Timer Setting Time (Minutes)”flashes in digital
display-2.
3. Turn the crown to set the “minutes”timer setting
time.
·When turning the crown to the right (clockwise),
correction can be made in the positive direction.
When turning the crown to the left (counter
clockwise), correction can be made in the
negative direction.
4. After setting, return the crown to the normal
position.
<Timing using the Timer>
1. When pressing button (A) the timer starts counting
down from the time set.
2. Pressing button (A) again during measurement
stops the timer and pressing button (A) once more
while the timer is stopped, restarts the timer.
·Pressing button (B) during timer measurement
returns the watch to the timer initial setting display
and resumes countdown from the beginning.
3. Pressing button (B) when the timer is stopped
returns the watch to the timer initial setting display.
* When pressing the button, the operation
confirmation tone sounds.
<Timer Initial Setting
Display>
<Timer Initial
Setting Display>
Initial setting display
Stopped
Measurement
(B)
(A) (A)
(A)
(B)
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Press
Press
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(A)
(B)

3736
14. Using the Alarm
The alarm setting procedure and other procedures for alarm use are the same
for Alarm 1 and 2. Only the tone that sounds is different.
Once a day, the alarm sounds for 15 seconds when the set time is reached. When
the alarm is sounding, it can be turned off by pressing button (A), (B) or (C).
<Setting the Alarm Time>
1. Turn the crown and set the mode hand to either
the Alarm 1 or 2 [AL-1] or [AL-2] mode.
2. Press either button (A) or button (B) to access
the city to be corrected.
3. When the crown is pulled out to the first click
(alarm time setting position), the watch enters
the alarm correction state.
4. When button (A) is pressed, the location to be corrected changes each time it
is pressed. Select the location to be corrected so that it flashes.
·The alarm can be set (ON) or canceled (OF) by pressing button (B) when the
watch is in the alarm ON/OF correction state.
·When the crown is turned to the right (clockwise) in the “hours”or “minutes”
correction state, correction is made in the positive direction. When the crown
is turned to the left (counter-clockwise), correction is made in the negative
direction.
·Turning the crown continuously allows corrections to be made rapidly.
5. After corrections have been completed, return the crown to the normal position.
Note:
·When the time mode is set to the 12-hour time display, the alarm time also
uses a 12-hour time display. Pay attention to AM and PM when setting the
alarm time.
<Normal Alarm Display> <Alarm Correction State>
Alarm ON / OF
Hours
Minutes
Crown pulled
out to first click
Crown returned
to normal
position
(A)
(A)
(A)
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Press
Press
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(A)
(B)