Citizen 0S25 User manual

CHRONOGRAPH FUNCTION: CENTER CHRONOGRAPH SMALL HAND 1/20sec.

TIMING UP TO 59 minutes 59 seconds.

A) DISPLAYS AND BUTTONS

B) SETTING THE TIME

C) SETTING THE DATE

D) USING THE CHRONOGRAPH

E) CHRONOGRAPH RESET (INCL. AFTER REPLACING BATTERY)

A) DISPLAYS AND BUTTONS

B) SETTING THE TIME

1. Pull the crown out to the 2nd Click Position so that the second hand stops at (0) position.

2. Turn the crown to set the hour and minute hands.

3. When the crown is pushed back to the normal position in synchronization with a time signal,

small second hand begins to run.

Cal. 0S25 Instruction manual

Chronograph

second hand

Hour hand

Chronograph

minute hand

Second + 1/20

second chronograph

hand

Button A

Button B

minute hand

24-hour hand

2nd Click Position

1st Click Position

Normal crown position

Calendar

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C) SETTING THE DATE

1. Pull the crown out to the 1st Click Position.

2. Turn the crown anticlockwise to set the date.

* If the date is set between the hours of around 9:00 PM and 1:00 AM,

the date may not change on the following day.

3. After the date has been set, push the crown back to the normal position.

D) USING THE CHRONOGRAPH

This chronograph is able to measure and display time in

1/20 second united up to maximum of 59min 59sec.

The retrograde chronograph 1/20(1/1) second hand keeps continuously for

30 seconds after starting, and then stops at ZERO position.

Measuring time with the chronograph

Press button "B" to change the watch to the chronograph mode.

The second hand stops at the ZERO second position,

and changes to the chronograph 1/20(1/1) second hand.

1. The chronograph can be started and stopped each time button "A" is pressed.

2. Pressing button "B" resets the chronograph and all hands return to their 0 positions.

RESET

TIME

MEASUREMENT

STOP

"A"

"B"

"A"

"A"

"B"

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E) CHRONOGRAPH RESET (INCL. AFTER REPLACING BATTERY)

This procedure should be performed when the chronograph second hand

does not return to the "ZERO" second position after the chronograph has been reset,

and including after the battery has been replaced.

1. Pull the crown out to the 2nd Click Position.

2. Press button "A" to set the chronograph second hand to the 0 position.

3. Press button "B" to set the chronograph 1/20 second hand to ZERO position.

4. The chronograph hands can be advanced rapidly by continuously pressing button "A" or "B".

5. Once the hands have been zeroed,

reset the time and return the crown to its normal position.

* Do not return crown to normal position while chronograph second hand

return to 12:00 (ZERO) position.

Hand stops on the way when crown are returned to normal position and these

positions are recognized as 12:00 (ZERO) position.

These specifications might be changed without prior notice.

3/3

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