Citizen 0S2B User manual

MOVEMENT SPECIFICATIONS

CAL.0S2B

13-1/2 LINGE, 3 EYES CHRONOGRAPH WITH HIGH HAND

ANALOGUE QUARTZ, 0 JEWEL

BY CITIZEN WATCH CO., LTD. JAPAN

MANUFACTURED IN JAPAN

1. BASIC SPECIFICATIONS

(1) Cal. No. *TO CONFIRM WITH MOV'T DRAWING ATTACHED

CALIBRE

Ligne

Size*mm

Date

Total height

Battery life

Batter

(* 60 minutes chronograph operation per day)

(2) Time standard

Type of quartz : Tuning fork type quartz crystal

Frequency : 32,768Hz

Accuracy : +/-20 s/month worn under normal circumstances

(3) Balanceable weight of hand

Minute hand Max. 0.4 μN.m

Second hand Max. 0.11 μN.m

Other small hands Max. 0.02 μN.m

(4) Function

Chronograph 1/1 sec. basis (Up to 59 min. 59 sec.)

Powercell Saving Reset Mechanism(PSRM)

Over-loading Compensation Device(OLCD)

Digital Frequency Control(DFC) for time adjustmen

Eye position of 0S2B is the same as 0S20.

FS13

FS14

CENTER HANDS SMALL HANDS CENTER HANDS SMALL HANDS

0S20 0S2B

SILVER OXIDE SR927W or equivalent

0S2B

13-1/2

Φ30.80mm

5.10mm

pprox. 5 years

380μ(～330)

350μ(～300)

Small

Second

24H

0S2B

0S20

Chrono

Minute

Small Hand

Height is the

same as 0S20

350μ(～300)

380μ(～330)

1200μ

(

～1150

)

750μ

normal hands

1650μ

(

～1600

)

750μ

2. SEPARATED PART

Setting stem x1

Code 065-453

Length from movement center to far end 23.00mm

of setting stem

Thread................................. Ф0.9mm x 8.50mm

3. OTHERS

* Measurement of time rate

The unit(gate) time of measurement must be set at "10 sec." or integer fold

value of 10 sec. owing to the DFC system, and the measurement must be

performed in the form of complete watch.

* Marking on movement

JAPAN

MIYOTA CO.

0S2B

NO JEWELS

* Typical clearance

Mov't - Caseback minimum 150 microns

Top of hands - Glass 300 - 400 microns *

* subject to the glass, case structure, and the length of hand

* Note

Please use aluminum material hand for Chrono second hand

* TACHYMETER

The tachymeter is the device which measures the speed of an automobile. Knowing is how

many seconds the car covers a distance of 1km, the meter can measure the approximate

average speed per hour during a journey (up to the maximum measurable range of

tachymeter is 60 seconds.)

If the chronograph is started at the same time as measurement, and stopped after 1 km,

the average speed per hour can be determined according to the position of the second

hand. If the car covers the distance of 1km in 45second, the average hourly speed during

the journey will be about 80 km.

4. INSTRUCTION MANUA

A) DISPLAYS AND BUTTONS

B) SETTING THE TIME

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

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

C) SETTING 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.

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

2. Turn the crown counterclockwise to set the date.

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 1/1 second united up to

maximum of 59 minute and 59 second.

Measuring time with the chronograph

1.The chronograph can be started and stopped each time button "PB1" is pressed.

2.To reset, press button "PB2" resets the chronograph second & minute hands return to the 0 positi

"A"

RESET "A" TIME MEASUREMENT STOP

"B" "A"

"B"

2nd Click Position

1st Click Position

Normal Position

Date Disc

PB2

PB1 Minute Hand

Small Second Hand

Chronohraph

Minute Hand

Chronograph

Second Hand

Hour Hand

24 Hour Hand

2nd Click Position

1st Click Position

Normal Position

Date Disc

PB2

PB1 Minute Hand

Small Second Hand

Chronohraph

Minute Hand

Chronograph

Second Hand

Hour Hand

24 Hour Hand

E) CHRONOGRAPH RESET (INCL. AFTER REPLACING BATTERY)

This procedure should be performed when the chronograph second hand

do not return to the 0 second position after the chronograph has been reset,

and including after the battery has been replaced.

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

2. Press the button "PB1" once to set the chronograph second hand ahead one scale,

or keep pushing to set the chronograph second hands quickly.

3. Once the chronograph second hand has 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.

2nd Click Position

1st Click Position

Normal Position

Date Disc

PB2

PB1 Minute Hand

Small Second Hand

Chronohraph

Minute Hand

Chronograph

Second Hand

Hour Hand

24 Hour Hand

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