TMI Products VD8 Series Quick start guide

ANALOGUE QUARTZ

TECHNICAL GUIDE

PARTS CATALOGUE

Cal.VD8 Series

(Cal.VD84A/85A/86A/87A)

31032022

Version-01

Cal.VD8 Series

（VD84A/85A/86A/87A）

*Refer to page 2 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

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

VD87A

VD86A

VD85A

2 Hands 

(hour, minute)

VD84A

Accuracy

Battery

Measuring gate by quartz tester

Jewels

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

0 Jewel

Day Calendar

hand (10 H) Retrograde

Day Calendar

hand (9 H) Retrograde

SPECIFICATION

Cal. No.

Item

Outside diameter

Casing diameter

Cal. No.

Small Second

hand （6 H）

VD84A

Movement

size

Total height

3.45 mm

Time

indication

Driving　system

Additional mechanism

Antimagnetic

Step motor

≧1600 A/m

Hands

24 Hour hand

(12 H)

Date Calendar

hand （3 H）

Date Calendar

hand （2 H）

Version-01

Cal.VD8 Series

（VD84A/85A/86A/87A）

MOVEMENT VARIATION

VD84A

VD85A

VD86A

VD87A

Day

(Retrograde) Date

Small second

Day

(Retrograde)

Date

Small second

Date

24hours

Day

(Retrograde) Day

(Retrograde) Date

Small second

Version-02

Cal.VD8 Series

（VD84A/85A/86A/87A）

Lubricating : Types of oil

Disassembling procedures Figs.

① → ㊼

A3a / Moebius 9010

A2a / Moebius 9030

Reassembling procedures Figs. ㊼

→ ①

Oil quantity

Normal quantity

Hour and minute hands

Small second, Date-Day calendar

24 Hour 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 0491 014

Dial washer

0873 169

Day jumper 0157 169

Small hour hand wheel

0505 169 0737 169

Day transmission wheel Date corrector wheel

0970 169

0125 269 Date star

Day wheel bridge 0012 079

1019 170

Day wheel

0585 169 0836 171

Hammer (A)

0585 170

Hammer (B) 0962 033

0125 369

Small second wheel bridge 0962 033

0240 169

Small second wheel

0273 169 0737 891

Hour wheel

㉕

⑭

⑧

⑨

㉑

PARTS CATALOGUE

㉓

⑳

Intermediate wheel for

date corrector (D)

③

⑱

Intermediate wheel for

date corrector (B)

㉔

⑲

Intermediate wheel for

date corrector (C)

⑯

㉒

⑰

Intermediate wheel for date

corrector holder

<<VD84A>>

①

②

④

⑩

⑤

Intermediate wheel for date

corrector holder screw

⑪

⑥

⑫

⑦

⑬

⑮

Version-02

Cal.VD8 Series

（VD84A/85A/86A/87A）

Lubricating : Types of oil

Disassembling procedures Figs.

① → ㊼

A3a / Moebius 9010

A2a / Moebius 9030

Reassembling procedures Figs. ㊼

→ ①

Oil quantity

Normal quantity

Hour and 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 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

Hammer (A) 0962 033

0585 170

Hammer (B)

0125 369 0962 033

Small second wheel bridge

0240 169

Small second wheel 0737 891

0273 169

Hour wheel

Intermediate wheel for date

corrector holder

Intermediate wheel for date

corrector (B)

Intermediate wheel for date

corrector (C)

Intermediate wheel for date

corrector (D)

㉑

⑱

㉓

⑮

㉒

⑯

⑬

⑳

⑭

Intermediate wheel for date

corrector holder screw

⑰

PARTS CATALOGUE

<<VD85A>>

⑫

①

②

③

④

⑧

⑤

⑨

⑩

⑥

⑪

⑦

⑲

Version-02

Cal.VD8 Series

（VD84A/85A/86A/87A）

Lubricating : Types of oil

Disassembling procedures Figs.

① → ㊼

A3a / Moebius 9010

A2a / Moebius 9030

Reassembling procedures Figs. ㊼

→ ①

Oil quantity

Normal quantity

Hour and 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 0737 169

0873 169 Date corrector wheel

Day jumper 0970 169

0505 169 Date star

Day transmission wheel 0012 079

0125 269

Day wheel bridge

1019 170 0836 171

Day wheel

0585 169

Hammer (A) 0962 033

0585 170

Hammer (B) 0804 170

0125 369

Small second wheel bridge

0240 169 0737 891

Small second wheel

0273 169

Hour wheel

⑱

⑮

㉒

⑯

㉑

Intermediate wheel for date

corrector (D)

⑬

⑳

⑭

Intermediate wheel for date

corrector holder

⑰

⑫

⑲

⑥

Intermediate wheel for date

corrector (B)

Intermediate wheel for date

corrector (C)

⑤

PARTS CATALOGUE

<<VD86A>>

①

②

③

④

⑧

Intermediate wheel for date

corrector holder screw

㉓

⑨

⑩

⑪

⑦

Version-02

Cal.VD8 Series

（VD84A/85A/86A/87A）

Lubricating : Types of oil

Disassembling procedures Figs.

① → ㊼

A3a / Moebius 9010

A2a / Moebius 9030

Reassembling procedures Figs. ㊼

→ ①

Oil quantity

Normal quantity

Hour and minute hands

Small second, Date-Day

Dial calendar hands

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 0737 169

Date corrector wheel

0873 169

Day jumper 0970 169

Date star

0505 169

Day transmission wheel 0012 079

0125 269

Day wheel bridge 0836 171

1019 170

Day wheel

0585 169 0962 033

Hammer (A)

0585 170

Hammer (B) 0804 170

0125 369

Small second wheel bridge 0737 891

0240 169

Small second wheel

0273 169

Hour wheel

⑱

⑮

㉒

⑯

㉑

Intermediate wheel for date

corrector (D)

⑬

⑳

⑭

Intermediate wheel for date

corrector holder

⑰

⑦

⑫

⑲

Intermediate wheel for date

corrector (B)

Intermediate wheel for date

corrector (C)

⑤

PARTS CATALOGUE

<<VD87A>>

①

②

③

④

⑧

Intermediate wheel for date

corrector holder screw

㉓

⑨

⑩

⑥

⑪

Version-02

Cal.VD8 Series

（VD84A/85A/86A/87A）

Lubricating : Types of oil

Disassembling procedures Figs.

① → ㊼

A3a / Moebius 9010

A2a / Moebius 9030

Reassembling procedures Figs. ㊼

→ ①

Oil quantity

Normal quantity

Battery 0012 168

Battery connection (+) screw

4004 271

*Battery connection (+) Circuit block with coil block

0281 452 4455 169

Setting wheel Reset lever

0261 452 0144 003

4216 169 Minute wheel and pinion

Insulator 0231 058 4146 170

Step rotor

0221 069

4239 169

Stator

0391 169

4270 469

Battery connection (-) 0701 452 0383 891

Fifth wheel and pinion Setting lever

0125 469

Train wheel bridge 0384 452

Yoke

0282 452

Clutch wheel

*1 Oiling position

0351 177

Winding stem

0804 169

Intermediate wheel for date corrector (A)

*Refer to page 9 for each parts code

PARTS CATALOGUE

㉟

㊱

㊺

㊼

㊻

㊳

㉛

Train wheel setting lever

㊶

㊸

㊹

㊵

㉖

㉗

㉜

㉘

㉞

㉝

㉚

Center wheel and pinion

㊷

㉙

Fourth wheel and pinion

㊲

Third wheel and pinion

㊴

Version-01

Cal.VD8 Series

（VD84A/85A/86A/87A）

Remarks:

O Different parts for each CAL.

* All parts code are subject to change without notice.

―

Parts name

Parts code

VD84A

VD85A

VD86A

VD87A

4271 494

―

PARTS CATALOGUE

―

4271 476

4271 477

4271 478

―

Battery connection (+)

―

Version-01

Cal.VD8 Series

（VD84A/85A/86A/87A）

・The explanation here is only for the particular point of Cal.VD84A/VD85A/VD86A/VD87A

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

①The 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.

②Dial setting.

③Install the Day calendar hand at the first position.

④Install the Date calendar and small second hands at the

12 o'clock position.

⑤Pull out the crown to the second click position and

rotation it clockwise the change date.

⑥Install the 24 hour and hour and minute hands at the

12 o'clock position. first position

(2)Day calendar (Retrograde) hand

・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.

TECHNICAL GUIDE

Support for dial side parts

Direction of rotation

Push

B position

A position

Metal plate

This manual suits for next models

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