Watch Movement Specification and Drawing

Ø 30.6mm

Approx. 4 months

SOLAR SERIES

Cal. VR42A

Movement Size

Casing Diameter

Height

Running Time

13 1/2’’’

4.52mm

Date: 30/Nov./'17

Cal. VR42AItems Rev. Page

Features 00 1Specifications 01 2Appearance 00 3Casing 01 4Hand fitting-01 00 5-01Hand fitting-02 00 5-02Hand setting stem 00 6Dial 00 7Casing ring 00 8Solar cell unit 02 9Attention-01 00 10-01Attention-02 00 10-02Attention-03 00 10-03Operation-01 00 11-01Operation-02 00 11-02

Date :

1.Solar-powered watch

light into '' electrical energy'' and store the power in a secondary battery.

2. Eliminating the need for battery replacement

need for battery replacement.

3. You can use the dial which light transmittance is more than 30%It is possible to assemble the dial which transmits light on the solar cell.It enabled to cover the solar cell color, and you can design variety colors of dials.

4. Running timeExpected running time from full charge to stoppage will be around 4 months.

5. Power depletion warning functionThe two-second intervals movement of the second hand is a signal of energy depletion.The watch continuous running time after two-second intervals movement is approximately 2 weeks.

6. Over charge prevent function is equippedIf the secondary battery is charged more than predetermined voltage, over charge prevent function isoperated to prevent the secondary battery deterioration and breakage.

7. Structure of the separated parts

Unlike conventional quartz watches, this watch does not use a silver oxide battery, thus eliminating the

This watch is a solar-powered watch containing a solar cell underneath the dial to convert any form of

Cal.VR42A Features

4/Dec./'15

Rev. : 00

Solar cell unit

Solar cellHolding ring for dial

Solar cell lead terminal

Movement

Hand setting stem

Secondary battery unit

P. 1

Date :

1. MOVEMENT DIMENSIONSOutside diameter φ31.20mm × 28.00mm(3-9H)Casing diameter φ30.6mmTotal height 3.97mm (Including solar cell : 4.52mm)

2. TIME STANDARDType of quartz oscillator Tuning forkFrequency of quartz oscillator 32,768 HzAccuracy ±20 seconds per month (on wrist)Operating temperature range －5℃ to ＋50℃Regulation device Nil (Pre-adjusted)

3. INDICATOR / FUNCTIONS3 Hands Hour / Minute / SecondSmall hands 24 hour(3H) / Second chronograph(6H) / Minute chronograph(9H) Calendar Instant setting device for date calendarReset switchPower depletion warning function

(Second hand moves at 2-second intervals when voltage is 1.2V)Running time Approx. 4 months (After fully charged)Setting mechanism Crown at normal position : Free

Crown pulled out 1st click : Instant date changeCrown pulled out 2nd click : Time setting / Reset

Chronograph 1/1 second up to 30 minutes with split time measurementBattery indicator Push 4h button (more than 1second)

4. FEATURESJewels 0 JewelsAnti-magnetism Over 1600A/m (Direct current magnetic field)Driving current consumption Approx. 1.45μA (1.4V,chronograph non-operates)Operation stopping voltage 1.2V(Chronograph function)Solar cell type Amorphous silicon solar cellMaximum unbalance of hands Hour hand : 0.6μN・m

Minute hand : 0.9μN・mSecond hand : 0.09μN・m24 hour hand : 0.05μN・mSecond chronograph hand : 0.05μN・mMinute chronograph hand : 0.05μN・m

Moment of inertia Second hand : less than 0.25 μg・m²Second chronograph hand : less than 0.05 μg・m²

5. SECONDARY BATTERYType Titanium-lithium-ion secondary batterySize φ9.5mm × t 2.05mmNominal voltage 1.5 VCapacity 5.5 mAh

6. SEPARATED PARTS (Parts code)Hand setting stem 0351578 or 0351177Secondary battery unit 302334RSolar cell unit 4020529Solar cell lead terminal (2pcs) 4281516

7. TEST OF ACCURACYEquipment to be used SEIKO quartz tester QT-99,

Greiner quartz timer-C , Witschi Q-tester 4000Duration of measurement 10 secondsMicrophone to be used Electromagnetic detection type

All specifications are subject to change without notice.

Cal.

Solar Quartz 13 1/2''' Chronograph Movement

VR42A Rev. : 01

19/Feb./'16

Specifications

P. 2

Date :

1. Attention for solar cell unitPay attention not to touch and scratch the surface of the solar cell.

2. Dial transparency rateKeep the transparency rate of the dial more than 30%. (Effective aperture is φ27mm)Each elements of solar cell must be kept the transparency rate.

3. The guideline of charging time is as in below(Dial transparency rate = 30%)

700 Inside the office ― 69

3,000 30W 20cm 52 15

10,000 Cloudy 16 5

100,000 Fine weather 5.3 2

Condition A : Time required for full charge

Condition B : Time required for steady operation

Condition C : Time to charge 1 day of power

4. How to set the secondary battery unitPlease set the exclusive secondary battery unit.(The secondary battery is Titanium-lithium-ion battery without any environmentally harmful substances.)Please install the minus part of the secondary battery towards inside of the watch.If the silver oxide battery is accidentally set and charged, there is a possibility of battery explosion.To prevent from the battery explosion, it is adopted safety structure not to charge the silver oxide battery even if it is accidentally set.Install the secondary battery unit under the circuit block cover as illustrated below A and B.Check whether the secondary battery lead plate is surely connected to minus terminal. (Refer to the Fig.[2])

Sun light1.5

0.5

4

Cal.VR42A Attention-01

4/Dec./'15

Rev. : 00

C(Approx. Minutes)

A fluorescent lamp18

Illumination(Lx)

Source of light EnvironmentA

(Approx. Hours)

B(Approx. Hours)

A

B

Fig.[1] Fig.[2] (Detail of A)

minus terminal

secondary battery lead plate

P. 10-01

Date :

5. How to remove the setting stemWhen removing the setting stem,put the setting stem at normal position and push the ''setting lever'' by tweezers. (Refer to the Fig.[3].)The ''setting lever'' can not be push if the setting stem is not at normal position.

6. Attention of casing part structureUse the specified holding ring for dial 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.Use the metal case to prevent from the movement malfunction by static electricity.

7.How to set the hands 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.Do not turn the hand forcibly.

8.How to remove the handsWhen removing the hands, use exclusive fork-shaped tools.Do not remove the dial under the condition that any hands are set.

When set and remove the hour hand repeatedly, it may reduce the hand fixing torque because the hour wheel is made by plastic.To ensure the enough fixing torque, it isn't recommended to re-assemblethe hour hand more than five times.(Type M only)

9. CautionWhen charging the watch, do not place it too close to fluorescent lamp or other light sources as the watch temperature will become extremely high, causing damage to the parts inside the watch.

10. How to set the solar cell lead terminalPlease set 2pcs of solar cell lead terminals in accordance with this illustration.As to the solar cell lead terminal shape, there is no distinction between upper and lower.

11. How to set the solar cell unitPush above part of each hook on the solar cell unit into main plate certainly.

Cal.VR42A Attention-02

4/Dec./'15

Rev. : 00

Fig.[3]

P. 10-02

Date :

12.How to set the dialThe dial is held by the four guide poles on the solar cell unit.

13. Button positionPlease keep the clearance between the movement and the tip of button to prevent the interferencein assembling and enable to be cased smoothly.

To keep the clearance,it is recommended to use button spring.

Cal.VR42A Attention-03

4/Dec./'15

Rev. : 00

Button

Clearance

1515(From movement center)

P. 10-03

Date :

0 click 1st click

Crown FreeTurn counterclockwise fordate change

2H buttonChronograph Start/Stop Restart

Chronograph Start/Stop Restart

Chronograph Reset Split Split release

Chronograph Reset Split Split release

Battery indicator[*1] (Press more than 1 second)

Battery indicator[*1] (Press more than 1 second)

Chronograph functionSecond chronograph hand is capable of timing 30 minutes. (60 seconds x 30 times)

Minute chronograph hand is capable of timing 30 minutes.

Standard measurement Accumulated elapsed time measurement

Split time measurement

Measurement of two competitors

4H button

Time setting

Chronograph hands 0-setting(clockwise)

Chronograph hands 0-setting(counterclockwise)

Cal.VR42A

Crown position

2nd click

Operation-014/Dec./'15

Rev. : 00

0 → 1 → 2

2H button

4H button

Minute hand

Second hand

Minute chronograph hand

Crown

Hour hand

Second chronograph hand

24 hour hand

Start Stop Reset

2H button 2H button 4H button

Start Finish time of 1st competitor

2nd competitorfinishes

2H button 4H button 2H button 4H button 4H button

ResetFinish timeof 2nd competitor

Start Split Split release

2H button 4H button 4H button 2H button 4H button

ResetStop

Measurement and release of sprit time can be repeated by pressing 4H button.

Start Stop

2H button 2H button 2H button 2H button 4H button

Reset

Restart and stop of the chronograph can be repeated by pressing 2H button.

Restart Stop

P.11-01

Date :

Battery indicator

Press 4H button more than 1 second. The remaining battery capacity is indicated.Status indication is 2 seconds.Then it return automatically.

Battery indicator and durationBattery level Power reserve

Cal.VR42A Operation-02

4/Dec./'15

Rev. : 00

Display

High

Middle

Low

90 days or more

30-90 days

30 days or less

position:35seconds

position:40seconds

position:45seconds

P.11-02