Citizen AV0025-51A User manual

2 3

CONTENTS

1. Features ......................................................................................................4

2. Before Using ...............................................................................................5

3. Names of Components...............................................................................6

4. Operating the Crown ................................................................................8

5. Setting the Time and Date ........................................................................9

• Procedure for Setting the Time

• Procedure for Setting the Date

6. Using the Chronograph.......................................................................... 12

7. Using the Alarm ...................................................................................... 16

8. Viewing the Charge Indicator ............................................................... 18

9. General Reference for Charging Times................................................ 20

10. Functions Unique to Solar-Powered Watches .................................... 22

• Insufficient Charge Warning Feature

• Over Charge Prevention Feature

11. Handling Precautions ........................................................................... 25

• Try to Keep the Watch Charged at all Times

• Charging Precautions

• Handling of Secondary Battery

12. Replacing the Secondary Battery........................................................ 27

13. Using the Tachymeter (When Provided) ............................................ 28

14. All-Reset ................................................................................................ 29

• All-Reset Procedure

15. Precautions ............................................................................................ 32

16. Specifications ........................................................................................ 38

English

4 5

1. Features 2. Before Using

Repairs

All repairs performed on this watch, with the exception of repair of the band, are to be

performed at CITIZEN. This is because special technologies and equipment are

required to perform repairs, inspections and adjustments. Please make requests for

repairs to Citizen Service Center when having your watch repaired.

This watch is a solar-powered watch that contains a solar cell in its face that drives the

watch by converting light energy into electrical energy. It is also equipped with numerous

functions including:

• a chronograph function capable of timing for up to 12 hours in 1/5 second units;

• an alarm function that sounds an alarm for 20 seconds when the set time is reached

using a 12-hour indicator hand, and can be set to an accuracy of ±5 minutes; and,

• a charge indicator function that indicates the charged level of the secondary battery

to one of four levels.

To use this watch comfortably, always make sure to charge the watch to level 3 of the

charge indicator hand. Charge the watch by exposing the solar cell (watch face) to light by

referring to section 9 entitled “General Reference for ChargingTimes”. Once fully charged,

the watch will continue to run for about 8 months without additional charging.

Before storing your watch, always make sure to charge it until the charge level indicator is

pointing at least to level 3. Periodically charge your watch even while it is being stored.

6 7

3. Names of Components

<Models with the crown at

the 3:00 position> <Models with the crown at

the 12:00 position>

• This manual describes the

procedure for using your watch

based on the example of a

model with the crown at the

3:00 position. The explanation

is the same for other models

except that crown is at the 12:00

position instead of the 3:00

position.

• The alarm scale is divided into

10 second units, while the

chronograph scale is divided

into 1/5 second units.

VThe design may vary depending on the model.

1. Charge indicator hand

2. Hour hand

3. Minute hand

4. Second hand

5. Chronograph hour hand

6. Chronograph minute hand

7. Chronograph second hand

8. Alarm indicator hand

9. Alarm hand

A. Button (A) (start/stop)

B. Button (B) (reset)

C. Button (C)

D. Crown

E. Alarm crown

10. Date

G. Chronograph scale

F. Alarm scale

(G) (4)

OFF

500

400

300

250

120

130

140

150

160

180

200

220

100

110

CHARGE

45 15

(E)

(F)

(D)

(A)

(B)

(1)

(2)

(3)

(5)

(6)

(7)

(C)

(9) (10)

(8)

(3)

(5)

(D)

(2)

(4)

(6)

(7)

(8)

(9)

(10)

(A) (B)

(F) (G)

(1)

8 9

4. Operating the Crown

Once you have finished setting the time and so forth, always make sure push the crown in

to return it to the normal position (0 seconds position). If the crown is not pushed in far

enough, it may stop at the calendar correction position. If the watch is used with the crown

in this position, the date may be changed inadvertently or the crown may be damaged.

If the crown of your watch is of the screw-lock type, operate the crown after first loosening

the screw locking mechanism by turning the crown to the left. When finished operating

the crown, turn the crown to the right while pushing in after having returned it to the

normal position and tighten securely. Please be careful to ensure that the screw locking

mechanism is tightened sufficiently since failure to do so can cause bending of the crown,

incorrect time or impaired water resistance.

5. Setting the Time and Date

1. Pull the crown out to the time correction position (second click) when the second hand

has reached the zero seconds position.

2. Set the time by turning the crown.

• The date changes at 12:00

AM. Pay attention to AM

and PM when setting the

time.

3. Return the crown to the

normal position (0 position)

in synchronization with a

telephone time signal or

other time service.

500

400

300

250

120

130

140

150

160

180

200

220

100

110

HAR

Hour hand

Second hand

Minute hand

Normal

position (0)

Time correction

position (2)

[Procedure for Setting the Time]

10 11

Helpful Hint for Accurately Setting the Time:

After stopping the second hand at the 0 seconds position, advance the minute and hour

hands 4-5 minutes past the correct time and then move them back to the correct time.

Setting the time in this manner eliminates any play in the gears of the watch movement.

The hands of the watch can be made to advance at the correct time by pushing in the crown

in synchronization with a telephone time signal or other time signal.

[Procedure for Setting the Date]

• This watch is not equipped with a fully

automated calendar. It is necessary to correct

the date by operating the crown to the first day

of the following month in those months with

less than 31 days (months having 30 days and

February). (The date is displayed based on a

31 day cycle.)

1. Pull the crown out to the date correction position (first click).

2. Set the date by turning the crown to the left. If the crown is turned to the right, nothing

will happen and the date will not change.

• Do not attempt to set the date between the hours of around 9:00 PM and 1:00 AM. If

the date is set during this time period, the date may not change on the following day.

3. Once the date has finished being set, return the crown to the normal position (0 position).

* The date will change automatically at around 12:00 AM. If the date changes at 12:00

PM, advance the time by 12 hours.

OFF

500

400

300

250

120

130

140

150

160

180

200

220

100

110

CHARGE

45 15

Normal

position (0)

Date correction

position (1)

Date

12 13

6. Using the Chronograph

• The chronograph is capable of timing and displaying the time for up to 12 hours in 1/5

second units. The chronograph stops automatically when 12 hours have elapsed.

• When starting timing, first check that each of the chronograph hands has returned to

12:00 . If the hands are not at 12:00, press button (B) to return them.

• The force required to press button (A) is slightly greater when starting timing for the first

time to indicate that chronograph timing has begun. Firmly press button (A) until a

clicking sound is heard.

[Timing Procedure]

1. Press button (A) when the watch

is in the chronograph reset state

to start timing. Press button (A)

again to stop timing.

•Timing starts and stops

repeatedly each time button

(A) is pressed.

[Chronograph Reset State]

[Note]

• When pressing button (A), be careful not to also

press the alarm crown at the same time. This is

particularly important in the case of models in which

the crown is located at the 12:00 position.

Be careful not to press the

alarm crown

Button (A)

500

400

300

250

120

130

140

150

160

180

200

220

100

110

HAR

Chronograph second hand

Chronograph

hour hand

Chronograph

minute hand

Button (A)

Button (B)

Chronograph

scale

14 15

• When timing has continued for 12 hours, timing is stopped automatically and each of the

chronograph hands stops at 12:00. In this case, always make sure to reset the chronograph

before additional timing since it is not reset to zero at this time.

[Reset Procedure]

1. Press button (A) to stop the chronograph.

2. Press button (B) to reset the chronograph.

• This resets the chronograph following 12 hours of timing. Timing can be resumed by

pressing button (A).

[When Chronograph Second Hand has

not been Properly Reset]

Note: Do not subject the watch to strong impacts while timing is in progress.

• The chronograph hands may rarely be shifted out of position if the watch is subjected

to a strong impact either while timing is in progress or after the chronograph has

stopped automatically after timing for 12 hours. In this case, reset the

chronograph by following the procedure described above. Promptly have your

watch repaired if any of the chronograph hands do not return to 12:00 even

if the reset procedure has been performed.

2.Press button (B) to reset the chronograph to 0 seconds after it has been stopped.

• The chronograph is not reset if button (B) is pressed while timing is in progress. To

reset the time, press button (B) after first interrupting timing by pressing button (A).

* If the chronograph is repeatedly started and stopped without resetting, the chronograph

hands may rarely shift from the 12:00 position after 12 hours have elapsed.

500

400

300

250

120

130

140

150

160

180

200

220

100

110

HAR

Chronograph hour hand

Chronograph

second hand

Chronograph minute hand

Button (A)

Button (B)

16 17

7. Using the Alarm

• The alarm function uses a 12 hour indicator hand.

• When the alarm hand has been set to ON, the alarm sounds for 20 seconds when the set

time is reached. Furthermore, the alarm will only sound once. Since the alarm is based

on 12 hour clock, the alarm sounds twice in the AM and PM when it has been set.

• Since an indicator hand is used to set the alarm time, there is a certain degree of error in

the set alarm time. The indicator hand should be only be used as a rough indicator of the

set alarm time.

[Procedure for Setting

the Alarm Time]

1. Pull the alarm crown out to the

first click.

2. Turn the alarm crown to set

the alarm indicator hand to the

time when you want the alarm

to sound.

500

400

300

250

120

130

140

150

160

180

200

220

100

110

HAR

Alarm crown

normal position

First click

Alarm hand

Alarm indicator hand

• In order to set the alarm time, advance the alarm indicator hand about 30 minutes past

the desired set time and then turn it back (counter-clockwise) to the desired set time.

3. Return the alarm crown to the normal position.

4. Press the alarm crown to set the alarm hand to ON.

• This completes the procedure for setting the alarm time.

[Switching the Alarm ON and OFF]

• The alarm is switched between ON and OFF each time the alarm crown is pressed.

[Stopping the Alarm]

• The alarm is stopped by pressing the alarm crown while the alarm is sounding. Note

that the alarm hand will also simultaneously be switched to OFF.

• Always make sure to wait at least 20 minutes before setting the alarm to ON again.

The alarm will sound again if the alarm hand is set to ON before 20 minutes have

passed since the alarm last sounded.

Alarm scale

18 19

8. Viewing the Charge Indicator

• This charge indicator provides a general indication of the current level at which the

secondary battery is charged to one of four levels.

• The charge indicator hand points to the center of each level.

• The charge indicator only provides a rough estimate of the level at which the secondary

battery is charged. You can refer to this level when using your watch. It is recommended

that the watch normally be charged to at least level 2.

Note: When the charge level indicator hand points to “CHARGE”, there is hardly any

charge left in the secondary battery and the second hand moves at 2-second intervals.

The secondary battery will become completely depleted about 7 days later at which

time the watch will stop. Always make sure to charge the watch before it reaches

this state.

Remaining Charge: 1. The approximate amount of time the watch will continue to operate

without additional exposure to light.

2. This varies according to the usage frequency of the chronograph,

alarm, etc.

[Viewing the Secondary Battery Charge Indicator]

CHARGE

Level

Indicated

charge level

Level at which

insufficient

charge warning

feature is

activated

Level at which

watch is

somewhat

insufficiently

charged

(promptly charge

the watch to

level 3)

Level at which

watch can be

used without

worrying about

charging

Level at which

watch is fully

charged

CHARGE

Crown located

at 3:00 position

Crown located

at 12:00 position

Remaining

Charge

(reference

value)

First picture,

– Charge – Second picture,

– Level 1 – Third picture,

– Level 2 – Last picture

– Level 3 –

Empty –7 days 7 days–5 months

5 months–7 months 7 months

–

8 months

20 21

9. General Reference for Charging Times

The time required for charging varies according to the model of the watch (color of the

dial, etc.). The following times are shown below to serve only as a reference. * Charging time refers to the amount of time the watch

is continuously exposed to light.

Charging time for 1 day of operation:

Time required for charging the

watch to run for 1 day at 1-second

interval movement.

Full charging time:

Time required for charging the

watch from the stopped state to

ully charged.

Level 1: The watch is not charged

sufficiently for one-second

interval movement.

Charge the watch at least to

level 2.

Illuminance

(lux)

500

1,000

3,000

10,000

100,000

Environment

Inside an ordinary office

60-70 cm (24-28 in.) under

a fluorescent lamp (30 W)

20 cm (8 in.) under a

fluorescent lamp (30 W)

Outdoors, cloudy

weather

Outdoors, summer,

under direct sunlight

Charging time

required for 1 day of

operation

3.5 hours

2 hours

35 minutes

11 minutes

2 minutes

Charging time to level 1 (1-

second interval movement)

from stopped state

40 hours

18 hours

6 hours

2 hours

25 minutes

Charging time to level 2

from stopped state

Charging time to level 3

(fully charged) from

stopped state

100 hours

30 hours

5.5 hours

150 hours

45 hours

8.5 hours

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