Time Module VD8 series Technical Manual

ANALOGUE QUARTZ

TECHNICAL GUIDE

&

PARTS CATALOGUE

Cal.VD8Serise

SII Products

(Cal.VD84/85/86/87A)

Revised on : 24. Dec. 2013

[SPECIFICATION]

*Refer to the 2pages for other Cal. No. specifications.

φ23.70 mm

22.60 mm ： between 12 o'clock and 6 o'clock sides

22.60 mm ： between 　3 o'clock and 9 o'clock sides

φ23.30 mm

22.10 mm ： between 12 o'clock and 6 o'clock sides

21.40 mm ： between 　3 o'clock and 9 o'clock sides

3.45 mm

Electronic circuit reset switch
Second setting device
Date setting

SR626SW (Silver oxide battery)
Battery life is approximately 3 years
Use 10-second gate
* Set the winding stem with crown at the normal position

* All specifications are subject to change without notice.

×

O

×

Less than ±20seconds : Monthly rate at normal temperature rangeAccuracy

Step motor

×

O

O

×

×

Antimagnetic ≧1600 A/m

O

××

×

O O

×

×

×

O

O

O

6

O
O
O

O

VD85A

O

VD84A

PARTS CATALOGUE / TECHNICAL GUIDE

Version-04

VD8Series

VD86A VD87A

VD84A

Movement
　　　　size

O O

5 5 5

O

24Hour hand (12H)

Cal. No.

Item

Small Second hand （6H）

Outside diameter

Casing diameter

Total height

2Hands (hour , minute)

Time
indication

Movement

Cal. No.
hands

1

Battery

Measuring gate by
　　　　　　　quartz tester

SII Products

Jewels 0 Jewel

Additional mechanism

Date -Calendar
　　　　 Hand （3H）

Day -Calendar Hand （10H）

Day -Calendar Hand(9H)

Date -Calendar
　　　　 Hand （2H）

Driving　System

Retrograde

RetrogradeRetrograde

Retrograde

Retrograde

RetrogradeRetrograde

Retrograde

2

SII Products

MOVEMENT VARIATION

Version-02

VD8A

VD86A VD87A

VD84A VD85A

Day
(Retrograde)

Date

Small-second

Day
(Retrograde)

Date

Small-second

Small-second

Date

24hours

Day
(Retrograde)

Day
(Retrograde)

Date

Small-second

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs.

Moebius A Normal quantity
Moebius F

Hour , Minute hands

Small second , Date-Day calendar
24Hour hands

Dial

0012 079

Support for dial side parts screw
0802 469
Day driving wheel 0604 171

0802 469 Support for dial side parts
Date driving wheel

0491 014
0873 169 Dial washer
Day jumper

0157 169
0505 169 Small hour hand wheel
Day transmission wheel

0737 169

0125 269 Date corrector wheel
Day wheel bridge

0970 169

1019 170 Date star
Day wheel

0012 079

0585 169
Hammer A

0836 171

0585 170
Hammer B

0962 010

0125 369
Small second wheel bridge

0962 010

0240 169
Small second wheel

0737 891

0273 169
Hour wheel

15

20

7

8

18

19

21

22

16

17

Intermediate wheel for date corrector holder

Intermediate wheel for date corrector
holder screw

Intermediate wheel for date corrector B

25

Intermediate wheel for date corrector C

14

PARTS CATALOGUE

Version-04

VD8A

1 25

⇒

3

SII Products

25

1

2

3

23

24

5

6

4

9

Intermediate wheel for date corrector D

12

13

⇒

1

10

11

0100 471
Main plate

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs.

Moebius A Normal quantity
Moebius F

Hour , Minute hands

Small second , Date-Day calendar hands

Dial

0012 079

Support for dial side parts screw
0802 469
Day driving wheel 0604 171

Support for dial side parts
0802 469
Date driving wheel

0873 169
Day jumper 0737 169

Date corrector wheel
0505 169
Day transmission wheel 0970 169

Date star
0125 269
Day wheel bridge 0012 079

1019 170
Day wheel

0836 171
0585 169
Hammer A

0962 010
0585 170
Hammer B

0962 010
0125 369
Small second wheel bridge

0737 891
0240 169
Small second wheel

0273 169
Hour wheel

3

23

Version-04

VD8A

PARTS CATALOGUE

1

⇒

23

4

5

1

2

⇒

1

13

4

SII Products

16

17

18

21

Intermediate wheel for date corrector D

23

Intermediate wheel for date corrector C

Intermediate wheel for date corrector B

15

20

Intermediate wheel for date corrector holder

14

8

9

10

11

12

6

7

Intermediate wheel for date corrector
holder screw

19

22

0100 471
Main plate

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs.

Moebius A Normal quantity
Moebius F

Hour , Minute hands

Small second , Date-Day calendar hands

Dial

0012 079
0802 469 Support for dial side parts screw
Day driving wheel

0604 172
0802 469 Support for dial side parts
Date driving wheel

0873 169 0737 169
Day jumper Date corrector wheel

0505 169 0970 169
Day transmission wheel Date star

0125 269 0012 079
Day wheel bridge

1019 170
Day wheel 0836 171

0585 169
Hummer A 0962 010

0585 170
Hummer B 0804 170

0125 369
Small second wheel bridge 0737 891

0240 169
Small second wheel

0273 169
Hour wheel

Version-04

VD8A

PARTS CATALOGUE

1

⇒

23

18

⇒

1

5

SII Products

23

19

20

4

3

1

2

17

12

13

14

16

15

11

Intermediate wheel for date corrector
holder screw

Intermediate wheel for date corrector holder

7

8

9

10

5

6

Intermediate wheel for date corrector D

Intermediate wheel for date corrector B

Intermediate wheel for date corrector C

23

21

22

0100 472
Main plate

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs.

Moebius A Normal quantity
Moebius F

Hour , Minute hands

Small second , Date-Day calendar hands

Dial

0012 079

Support for dial side parts screw
0802 469
Day driving wheel 0604 172

Support for dial side parts
0802 469
Date driving wheel

0873 169 0737 169
Day jumper Date corrector wheel

0505 169 0970 169
Day transmission wheel Date star

0012 079
0125 269
Day wheel bridge

1019 170
Day wheel 0836 171

0585 169
Hummer A 0962 010

0585 170
Hummer B 0804 170

0125 369
Small second wheel bridge 0737 891

0240 169
Small second wheel

0273 169
Hour wheel

16

11

21

7

Intermediate wheel for date corrector

holder screw

Intermediate wheel for date corrector B

Intermediate wheel for date corrector D

Intermediate wheel for date corrector C

17

12

13

14

15

18

⇒

1

6

SII Products

23

19

20

Intermediate wheel for date corrector holder

23

8

9

10

22

5

6

Version-02

VD8A

PARTS CATALOGUE

1

⇒

23

1

2

4

3

0100 472
Main plate

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs.

Moebius A Normal quantity
Moebius F

*Refer to the 8pages for the each parts code

Battery 0012 168

Battery connection (+) screw

4004 271

Circuit block (with coil block)

*Battery connection(+)

0281 452 4455 169
Setting wheel Reset lever

0261 451 0144 003
4216 169
Insulator

0231 058

4146 170

0221 069 Step rotor

4270 469

4239 169
Stator

0391 169
0125 469
Train wheel bridge 0701 452

Fifth wheel and pinion 0283 891

Setting lever
0384 452
Yoke

0282 452
Clutch wheel

0351 177

0804 169

Train wheel setting lever

Winding stem

22

Intermediate wheel for date corrector A

18

19

21

20

5

Center wheel and pinion

15

17

6

Battery connection(-)

Fourth wheel and pinion

12

Third wheel and pinion

14

13

Version-07

VD8A

PARTS CATALOGUE

1

⇒

22

1

7

SII Products

⇒

122

16

2

7

3

9 8

10 11

4

Minute wheel and pinion

Main plate

*1

*1

Remarks:

Parts name

Dial washer 0491 014

* All parts code are subject to change without notice.

― ―

Battery connection(+)

VD87A

―

O

―
―
―

O

O
0100 472
4271 476

―

O

O

Small hour hand wheel

0157 169

0804 170

0962 010

4271 477
4271 478
4271 494

Intermediate wheel for
date corrector C

O O

― ―

Support for dial side
parts

0604 171
0604 172

O

― ―

OO

O

―

―

―

―

―

SII Products

Parts code

―

―

O

0100 471 O

―

―

―

O

―

―

Main Plate

Version-02

VD8A

PARTS CATALOGUE

VD84A

VD85A VD86A

8

O

―

―

O

―
―
―

O

―

―

O

・

The explanation here is only for the particular point of Cal.VD8A

1.REMARKS ON DISASSEMBLING

AND

REASSEMBLING

(1)HAND

・

How to install hands

Place the movement directly on a flat metal plate or
the like to install the hands.

Note: How to procedure hands

Day transmission wheel

①

The state of movement is confirmed by the position of

a right picture.
Pull out the crown to the second click position and
rotation. The position is setting.

②

Dial setting.

③

Install the Day calendar hand at the first position.

④

Install the Date calendar and small second hands at the

12 o'clock position.

⑤

Pull out the crown to the second click position and

rotation it clockwise the change date.

⑥

Install the 24hour and hour and minute hands at the

12 o'clock position.

(2)Day calendar (Retrograde) hand

first position

・

Be quick in Day calendar hand

The hand instantaneously returns from B position
to A position when one week passes.

(3)Winding stem

・

How to remove

While pushing the indented portion of the arrow pull out
the winding stem.

9

Version-02

VD8A

TECHNICAL GUIDE

SII Products

Support for dial side parts

Direction of rotation

Push

B position

A position

Metal plate

(4)Battery

・

How to install

Insert the battery aslant in the direction shown by the arrow.
Check the battery connection (+) securely touches the
side face of the battery.

(5)Insulator Insulator

Notes

：

To insulate between the battery connection (+)
and the battery connection (-), the insulator Pin
should put at the three pin securely as bellow.

(6)Day jumper and support for dial side parts

・

Reassembling procedures

The support for dial side parts spring set to the
day jumper. (A position)

Day jumper

support for dial side parts spring

A position

10

Version-02

VD8A

TECHNICAL GUIDE

SII Products

(6)Setting position (Notes at the time of disassembling and a reassembling)

・

How to Date-Day driving wheels setting position

Note:

・The Date indicator finger of a Date driving wheels is setting position " ○"mark of Main plate.
・The Day indicator finger of a Day driving wheels is setting position " △"mark of Main plate.

Day driving

wheel

setting position

11

SII Products

setting position

Date driving

wheel

VD8A

TECHNICAL GUIDE

≪

Cal. VD86････VD87setting position

≫≫≫≫

Version-02

≪≪≪≪Cal. VD84・・・・VD85setting position≫≫≫≫

Enlargement Enlargement

Note:

*6

*1:

Hour hand

*1 *2 *1 *2

*2:

Minute hand

*7 *7

*3:

Small second hand

*5 *8 *5 *8

*4:

Date calendar hand

*5:

Day calendar hand

*9 (Retrograde)

*3 *3 *9

*6:

24Hour hand

*7:

*4 *4

*8:

First click

・

Date setting

*9:

Second click

*2 *4 *2 *4 ・

Time setting

*7 *7

*8 *5 *8

*5

*9 *9

*3 *1 *3 *1

1.Pull out the crown to the 2.Push the crown back 3.Pull out the crown to 4.Push the crown back
second click when the in to the normal position the first clik. in to the normal position.
small second hand is at in signal. turn the crown counter­the 12 O'clock position. Pull out the crown to clockwise to set the data.

the first click . (Quick change function)
Turn the crown rotation to
set the day of the week.

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

(check that AM/PM is

set correctly)

*Do not set the date between 10:00 PM and 2:00 AM

Otherwise, the day may not change properly. If it is necessary to set the date during that time period,

First change the time to any time outside it, set the date and then reset the correct time.

Notes in time setting of Cal.VD8 series

When time setting is done with counterclokwise, date hand might be reversed.
The function, there is no problem.
Please set the date by using the quick change function when the date shown was incorrect.

Version-03

VD8A

OPERATION

DISPLAY AND CROWN OPERATION

12

SII Products

TIME SETTING

≪≪≪≪

VD84A

≫≫≫≫ ≪≪≪≪

VD85A

≫≫≫≫

≪≪≪≪

VD86A

≫≫≫≫

Crown at normal position

(Quick change function)

≪≪≪≪

VD87A

≫≫≫≫