Citizen C720 Manual

Citizen C720 Manual

1

M

6

9

B

2

8

 

TME

CHR

SET

 

MODE

TMR

AL-1

 

AL-2

AM

10

0 10-

30

20

TUE

 

SUN

 

SET

40 THU

TEMP.

50

60

 

 

SAT

OFF

 

 

3

7

5

A

4

This watch is a combination quartz watch with a world time function, which displays the time in 30 world cities and the UTC (Coordinated Universal Time), and a thermometer function. It also includes an EL (electroluminescence) light function.

English

1

CONTENTS

1. NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2. CHANGING MODES (FUNCTIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 3. SETTING THE HANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 4. TIME/CALENDAR MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 A. Changing the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 B. Changing the display city . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

C. Adjusting the time and calendar . . . . . . . . . . . . . . . . . . . . . . . . . . .12

5. ZONE SET MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 A. How to set the zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 6. ALARM 1 & 2 MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 A. How to set the alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

B. Alarm ON/OFF and alarm monitor . . . . . . . . . . . . . . . . . . . . . . . . . .18

7. TIMER MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 A. How to set the timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 B. Timer countdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

2

8. CHRONOGRAPH MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

A. Total elapsed time measurement . . . . . . . . . . . . . . . . . . . . . . . . . . .23

B. Split time measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 9. THERMOMETER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 A. Methods of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

B. Temperature measurement range and accuracy . . . . . . . . . . . . . .26 C. Switching between Celsius/Fahrenheit display . . . . . . . . . . . . . . .27

10. LOW BATTERY INDICATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 11. ALL RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 12. PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 13. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

3

1. NAME OF PARTS

Mode

 

Time • Calendar

 

Zone Set

Alarm 1 or

Timer

Chronograph

Name

Time display

Calendar/temperature display

City selection display

Alarm 2

 

 

 

Press once

 

 

 

 

Switching ON/OFF

Start/Stop

Start/Stop

Button A Press more

 

EL light goes on

 

EL light goes on

Alarm monitor

 

 

than 2 seconds

 

 

 

 

 

 

 

 

 

 

 

 

 

Press once

To calendar/

To city selection

Displayed city

Displayed city

Displayed city

To timer adjustment

Split/Reset

temperature display

display

changes

changes

changes

mode

Button B

 

 

Displayed city

To city setting

To alarm adjustment

 

 

Press more

To time/calendar adjustment mode

 

 

than 2 seconds

changes quickly

adjustment mode

mode

 

 

 

 

 

 

Button M Press once

To <SET> mode

To <SET> mode

To time display

To <AL-1> mode

To <TMR> mode

To <CHR> mode

To <TME> mode

1: Mode mark display

 

TME

 

SET

AL-1 or AL-2

TMR

CHR

2: Digital display [1]

Hour, minute, city

Month, day, city

Hour, minute, city

Hour, minute, city

Alarm time, city

Measured time

Hour, minute, second

(hours, minutes)

 

 

 

 

 

 

 

3: Digital display [2]

Second

Temperature

Second

Time difference from UTC

ON or OFF

Temperature

1/1000 second

4: Graphic display

Temperature (Celsius)

Day of week

Temperature (Celsius)

SET or OFF

 

Graphic display

 

 

 

 

 

 

 

 

4

 

 

 

 

5

5: Crown

To set analog time

 

 

6: Hour hand

Always indicates time (hours)

 

 

7: Minute hand

Always indicates time (minutes)

 

 

8: Second hand

Always indicates time (seconds)

 

 

9: Thermosensor

Measures temperature,

shown on the digital display

 

 

 

2. CHANGING MODES (FUNCTIONS)

This watch has the modes (functions) listed in the next page.

Each time button g is pressed, the mode changes. The current mode is indicated by the mode mark. For details on how to use each mode, see the appropriate section.

 

 

Mode mark

Mode mark

Mode (function)

 

 

(blinking)

 

 

TME

Time/Calendar

 

 

 

M CHR

TME

 

SET

Zone Set*1

SET

 

 

MODE

 

AL-1

Alarm 1

TMR

AL-1

 

 

AL-2

 

AL-2

Alarm 2

 

 

 

 

 

 

TMR

Timer

 

 

 

CHR

Chronograph

*1: Zone Set mode

This mode ables to set, for each of 30 world cities and the UTC (Coordinated Universal Time), a display (SET)/non-display (OFF) setting and a summer time setting.

*If the watch is left in the Zone Set mode, Alarm 1 or Alarm 2 mode for approximately 2 minutes, it will automatically return to Time/Calendar mode.

6

7

3. SETTING THE HANDS

Second hand

(1) Pull the crown out to stop the

 

 

 

 

 

hands.

 

 

 

Normal position

(2) Turn the crown to set the correct

 

 

 

time.

 

 

 

 

 

(3) Press the crown back in to restart.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setting position

8

TIME/CALENDAR4.

MODE

 

 

 

 

 

 

 

 

[Time display]

[Calendar, temperature

[City selection

 

 

 

 

 

 

display]

 

 

display]

 

City

 

 

Second

 

 

 

 

Temperature

 

 

 

Second

 

 

 

 

 

 

City (blinks)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TME

 

 

 

 

TME

 

 

 

TME

 

 

CHR

SET

 

 

 

CHR

SET

 

 

 

CHR

SET

 

 

 

MODE

 

 

 

 

MODE

 

 

 

 

MODE

 

 

TMR

AL-1

 

 

B

TMR

AL-1

 

C

B

TMR

AL-1

 

 

 

AL-2

 

 

 

AL-2

 

 

 

AL-2

 

 

 

40

50

60

 

 

 

 

 

SAT

 

40

50

60

 

30

 

 

 

 

 

 

HU

 

30

 

 

 

 

 

 

 

 

 

T

 

 

 

 

 

20

 

 

 

 

 

TU

E

 

 

20

 

 

 

10

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

U

 

 

 

 

 

 

AM

 

 

 

 

 

S

 

 

 

AM

 

 

B

10-

 

 

A

 

 

 

 

 

 

10-

 

 

 

 

 

 

 

 

 

Hour, minute

 

 

 

 

 

Temperature Month, day

 

 

 

 

 

Hour, minute

 

 

Day of the week

 

M

Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

A. Changing the display

The “time display” changes to “calendar, temperature display” when button B is pressed.

The “calendar, temperature display” changes to “city selection display” when button B is pressed.

9

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