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)
31
1020
246
12
18
60
10
20
30
40
50

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
25
19 Intermediate wheel for date corrector B
23
20 Intermediate wheel for date corrector D
2/9
17 Intermediate wheel for date corrector holder
24
18 Intermediate wheel for date corrector C
21
16 Intermediate wheel for date corrector
holder screw
22
8
14
9
15
6
12
7
13
4
10 5
11
1
2
3
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
19
21
20 Winding stem
22 Intermediate wheel for date corrector A
6Train wheel setting lever
16 18
Center wheel and pinion
Battery connection(-) 15
17
Third wheel and pinion 14
13
5
4Minute wheel and pinion Fourth wheel and pinion
12
9 8
10 11
1 2
7
3
Cal.6G34A
22 ⇒1
1⇒22
PARTS CATALOGUE
Main plate
*1
*1
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
3
Battery connection (+)
2
Center wheel and pinion Hour wheel
4271 468
4271 467
2
3
20
1
13
3

・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
T2
OUT1 VSS
P1
P3
XOUT
T4
RESET
P2
P4
VDD
OUT2
T3
XIN
OUT1
OUT2
VSS(-)
VDD (+)