Seiko 6G34A Quick start guide

[SPECIFICATIONS]

Cal. No.

Item

● Date calendar (3H position)

●Day calendar/ Retrograde (10H position)

●24 cities (12H)

●Second setting device

●Electronic circuit reset switch

Original

Second click

First click

Measuring gate by quartz tester 10-second gate

SR626SW (Silver oxide battery)

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

Loss/gain Nil

Driving system

Additional mechanism

Step motor

Crown Operation ●Free

●Tiime setting (turn clockwise to move forward and counterclockwise to move back）

●Date setting (turn counterclockwise)

Outside diameter Ф23.7mm

Main time: Hour, minute and small second hand (6H position)Time indication

NilNumber of jewels

Battery Voltage

Battery life

Battery No.

PARTS CATALOGUE / TECHNICALGUIDE

Cal. 6G34A

1.55V

Approx. 3 years

6G34A

Movement

Casing diameter Ф23.3mm

Total height 3.45mm

Movement size

(mm)

1020

246

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs. Moebius A (AO-3) Normal quantity

Moebius Ｆ(AO-2)

Hour , Minute hands

Small second , Date-Day calendar

24Hour hands

Dial

0022 247

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 0022 247

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

19 Intermediate wheel for date corrector B

20 Intermediate wheel for date corrector D

2/9

17 Intermediate wheel for date corrector holder

18 Intermediate wheel for date corrector C

16 Intermediate wheel for date corrector

holder screw

10 5

Cal.6G34A

25 ⇒1

1⇒25

PARTS CATALOGUE

0100 471

Main plate

Disassembling procedures Figs. Lubricating : Types of oil Oil quantity

Reassembling procedures Figs. Moebius A (AO-3) Normal quantity

Moebius Ｆ(AO-2)

*Refer to the 7pages for the each parts code

Battery 0012 168

Battery connection (+) screw 4004 162

Circuit block (with coil block)

471 465（Norma）

4171 466（Long）

*Battery connection(+)

0281 452 4455 169

Setting wheel Reset lever

0261 451 0241 471

4216 169

Insulator 0231 457

4146 170

0221 069（Nｏｒｍａｌ） Step rotor

4270 469 0221 0７０（Long）

4239 169

Stator

0391 169

0125 469

Train wheel bridge 0701 452

Fifth wheel and pinion *Setting lever

0384 452

Yoke

0282 452

Clutch wheel

0351 177

0804 169

3/9

20 Winding stem

22 Intermediate wheel for date corrector A

6Train wheel setting lever

16 18

Center wheel and pinion

Battery connection(-) 15

Third wheel and pinion 14

4Minute wheel and pinion Fourth wheel and pinion

9 8

10 11

1 2

Cal.6G34A

22 ⇒1

1⇒22

PARTS CATALOGUE

Main plate

271 467 (Normal)

4271 468 (Long)

Revision: Aug. 2008

●Discrimination of the hand installation height

Cal.6G34A watch has numerals printed on the dial and the movement to indicate the installation

heights. When repairing, refer to the table below.

Number for

Discrimination

TECHNICAL GUIDE Cal.6G34A

4/9

0221 070

0221 069

0273 170

0273 169

Battery connection (+)

Center wheel and pinion Hour wheel

4271 468

4271 467

・The explanation here is only for the particular point of Cal.6G34

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

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.

③

Install 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 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.

TECHNICAL GUIDE Cal.6G34A

5/9

Direction of rotation

Support for dial side parts

Push

Metal plate

B position

A position

(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.

setting position

Date driving

wheel

Day driving

wheel

setting position

6/9

≪Cal. 6G34 setting position≫

TECHNICAL GUIDE Cal.6G34A

Enlargement

(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

Cal.6G34A

TECHNICAL GUIDE

7/9

TECHNICAL GUIDE

Cal.6G34A

Ⅰ

. Remarks on disassembling and assembling

(1)Winding stem

・How to remove

While pushing the indented portion of the arrow pull out

the winding stem.

(2)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.

（3）Insulator

Notes：To insulate between the battery connection (+) Insulator

and the battery connection (-), the insulator

should put at the three pin securely as bellow. Pin

8/9

Push

Ⅱ. VALUE CHECKING

● Coil block resistance (see illustation below) 1.7 - 1.9 µO

Patterns Locations For Circuit Block (with Coil Block)

＊Measure registance of the coil block : Contact OUT 1 & OUT 2

＊Measure the current consumption for the circuit block alone : Contact VDD(+) & VSS(-)

9/9

●Current consumption circuit

block

For the whole movement

Less than 1.88 µA

For the circuit block alone Contact VDD(+) & VSS(-)

(see illustration below) (see illustration below)

Less than 0.27 µA

TECHNICAL GUIDE

Contact OUT 1 & OUT 2

(see illustration below)

Cal.6G34A

OUT1

VSS

XOUT

RESET

VDD

OUT2

XIN

OUT1

OUT2

VSS(-)

VDD (+)

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