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Date : 

1. MOVEMENT DIMENSIONS

Outside diameter

φ

27.60mm(12H-6H) 

×

 24.00mm(3H-9H)

Casing diameter

φ

27.00mm(12H-6H)

Total height

4.4mm

2. TIME STANDARD

Type of quartz oscillator

Tuning fork

Frequency of quartz oscillator

32,768 Hz

Accuracy

±

20 seconds per month (on wrist)

Operating temperature range

5

 to 

50

Regulation device

Nil (Pre-adjusted)

3. INDICATOR / FUNCTIONS

3 Hands

Hour / Minute / 1/5 second chronograph (Center)

Small hands

Small second (9H) / Minute chronograph (6H) / 24 Hour (3H)

Calendar

Instant setting device for date calendar

Reset switch
Power depletion warning function (BLD)

(Second hand moves at 2-second intervals when voltage is 1.2V)

Chronograph

Running time

Approx.  6 months (After fully charged)

4. FEATURES

Jewels

0 Jewels

Anti-magnetism

Over 1600A/m (Direct current magnetic field)

Driving current consumption

Approx. 0.65

μ

A  (1.35V ,  Chronograph non-operates)

Operation stopping voltage

1.0V

Solar cell type

Amorphous silicon solar cell

Maximum unbalance of hands

Small second hand

: 0.03

μ

N

m

Minute chronograph hand

: 0.03

μ

N

m

24 huor hand

: 0.03

μ

N

m

1/5 second chronograph hand

: 0.09

μ

N

m

Minute hand

: 0.70

μ

N

m

Moment of inertia

1/5 second chronograph hand

: less than 0.12

μ

g

5. SECONDARY BATTERY

Type

Titanium-lithium-ion secondary battery

Size

φ

9.5 

×

  t 2.05 mm

Capacity

5mAh

Nominal voltage

1.5V

6. SEPARATED PARTS (Parts code)

Hand setting stem

0351587

Secondary battery unit

302334T

Solar cell unit

4020552

Solar cell lead terminal (2 pcs)

4281516

Untransparent plate

4453500

7. TEST OF ACCURACY

Equipment to be used

SEIKO quartz tester QT-99
Greiner quartz timer-C , Witschi Q-tester 4000

Duration of measurement

10 seconds

Microphone to be used

Electromagnetic detection type

All specifications are subject to change without notice.

Solar Analog Quartz 12''' Center Second Chronograph Movement

Cal.

Rev. :  00

31/Jan./'18

VS75B

Specifications

The chronograph can measure up to 60 minutes in 1/5 second
increments.

P. 2 

Summary of Contents for Cal. VS75B

Page 1: ...Watch Movement Specification and Drawing SOLAR SERIES Cal VS75B Movement Size Casing Diameter Height Running Time 12 Ø 27 0mm 4 40mm Approx 6 months ...

Page 2: ... Features 00 1 Specifications 00 2 Appearance 00 3 Casing 00 4 Hand fitting 01 5 Hand setting stem 00 6 Dial 00 7 Solar cell unit 00 8 Attention 01 01 9 01 Attention 02 01 9 02 Attention 03 01 9 03 Operation 01 00 10 01 Operation 02 00 10 02 ...

Page 3: ...ls movement is approximately 1 week 6 Over charge prevent function is equipped 7 Structure of the separated parts If the secondary battery is charged more than predetermined voltage over charge prevent function is operated to prevent the secondary battery deterioration and breakage This watch is a solar powered watch containing a solar cell underneath the dial to convert any form of light into ele...

Page 4: ...rates Operation stopping voltage 1 0V Solar cell type Amorphous silicon solar cell Maximum unbalance of hands Small second hand 0 03μN m Minute chronograph hand 0 03μN m 24 huor hand 0 03μN m 1 5 second chronograph hand 0 09μN m Minute hand 0 70μN m Moment of inertia 1 5 second chronograph hand less than 0 12μg m 5 SECONDARY BATTERY Type Titanium lithium ion secondary battery Size φ9 5 t 2 05 mm C...

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Page 11: ... be connected to Guide pole Refer to the Fig 1 in below 5 To do system reset Sun light 2 5 1 Cal VS75B Attention 01 24 Sep 19 Rev 01 B Approx Hours A fluorescent lamp 35 8 When installing or changing the secondary battery unit it is recommended to remove three secondary battery clamp screws first then remove the secondary battery clamp not to damage the movement parts If you install the secondary ...

Page 12: ...to prevent rotation of the movement inside of the case in order to stabilize the button operation Refer to the Solar cell unit page instruction as to the shape and tolerance Each hand moves at step interval Set the each hand at correct position according to the scale on the dial in order not to make a mistake in reading time When charging the watch do not place it too close to fluorescent lamp or ...

Page 13: ...watch System reset Refer to Operation 01 1 is required in case of below after replacement of secondary battery unit malfunction or abnormal operation when an error occurs Cal VS75B Attention 03 24 Sep 19 Rev 01 It is necessary to set the 0 position after system reset because 0 position of small hands may slip off P 9 03 ...

Page 14: ...crown back to normal position System reset Pull crown out to the 2nd click position Press 2H and 4H buttons at the same time for longer than 2 seconds It is necessary to set the 0 position after system reset Cal Operation 01 31 Jan 18 Rev 00 VS75B Press 2H button for 2 seconds here will allow you to resume the procedure again as indicated by the arrow if necessary Minute chronograph hand turns a f...

Page 15: ...nt Split time measurement Cal Operation 02 31 Jan 18 Rev 00 VS75B Start Stop Reset Restart and stop of the chronograph can be repeated by pressing 2H button 2H button 2H button 4H button Start Stop Restart 2H button 2H button 2H button 2H button 4H button Start Split Split release 2H button 4H button 4H button 2H button 4H button Stop Reset Reset Stop Measurement and release of sprit time can be r...

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