Seiko 7T32B Manuale utente

EMMY

WATCH

VINTAGE

RESTORATIONS

Seiko

7T32B,7T42B

Movement

Parts

(1)

Compiled

EmmyWatch

htips://www.emmywatch.com

PARTS

CATALOGUE

/TECHNICAL

GUIDE

[SPECIFICATIONS]

Cal.

7T32B

Cal.

7T42B

Cal.

No.

item

7732B

7T42B

Movement

The

illustrations

refer

Cal.

7T32B.

1.0)

Movement

size

Outside

diameter,

g27.6mm

24.0mm

between

o’clock

and

o’clock

sides

Casing

diameter

827.0mm

24.0mm

between

o'clock

and

o‘clock

sides

Height

3.2mm

Time

indication

Main

time

Stopwatch

Alarm Timer

(for

Cal.

7T42B}

Hour,

minute

Minute

and

Small

hour

and

Minute

and

second

hands

and

small

1/5-second

minute

hands

(Stopwatch

1/5-second

second

hands}

hands

and

minute

hands)

Driving

system

Step

motor,

pieces

Additional

mechanism

Electronic

circuit

reset

switch

Train

wheel

setting

device

Battery

life

indicator

(Small

second

hand

moves

two-second

intervals.)

Date

calendar

Instant

setting

device

for

date

calendar

Stopwatch

function

(Up

minutes

1/5

seconds)

Accumulated

elapsed

time

measurement

Split

time

measurement

Timer

function

(Up

minutes

minutes)

Alarm

function

(12-hour

indication

system}

Alarm

test

system

Loss/gain

Monthly

rate

normal

temperature

range:

less

than

seconds

Regulation

system

Nil

Measuring

gate

quartz

tester

Use

10-second

gate.

Battery

SEIKO

SR927W,

Maxell

SR927W,

SONY

SR927W,

EVEREADY

399

Battery

life

approximately

years.

Voltage:

1.55V

Jewels

jewel

SEIKO

CORPORATION

PARTS

CATALOGUE

Cal.

77328,

7T42B

Disassembling

procedures

Figs.

Reassembling

procedures

Figs.

Lubricating:

Types

oil

Oil

quantity

Moebius

Normal

quantity

OC>

SEIKO Watch

Oil

S-6

Extremely

small

OC>

Silicone

Oil

500,000

c.s.

4589

801

Piezoelectric

element

Case

back

[gr

NO)

Case

back

gasket

Case

ring

(Cal.

7T32B)

Stopwatch

second

hand/Timer

minute

hand

Antimagnetic

shield

plate

(B}

L®

Minute

hand

(Cal,

77428}

Hour

hand

Button

””

Ove

——®

Small

second

hand

sea

Button

spring

clip

#«——®

Stopwatch

minute

hand/Timer

second

Button

hand

Alarm

minute

hand

Alarm

hour

hand

Dial

(10)

Winding

stem

Button

spring

Holding

ring

for

dial

Please

see

the

remarks

the

following

pages.

Cal.

7T32B,

7T42B

027

973

for

date

dial

guard

808 580

Date

dial

guard

878 527

Date

dial

962

580

Intermediate

wheel

for

calendar

correction

737

580

Date

corrector

setting

wheel

802

580

Date

driving

wheel

271

583

Hour

wheel

for

alarm

Hour

wheel

240

580

Small

second

wheel

885

590

—

——Ö

———Ä-

First

intermediate

wheel

for

second-counting

950

590

——

Intermediate

minute-

counting

wheel

902 580

Minute-counting

wheel

950

590-

Intermediate

alarm

wheel

270580

————_

Center

minute

wheel

@60

©®

for

alarm

261582

Minute

wheel

for

alarm

281582

——

eus

Setting

wheel

for

alarm

022

230

Battery

clamp

screw

022

459

Circuit

block

cover

screw

Please

see

the

remarks

the

following

pages.

022

230

Battery

clamp

screw

4225

714

(Cal.

77328}

4225

716

(Cal.

7T42B}

Battery

clamp

Battery

{See

the

front

page.)

022

459

Circuit

block

cover

screw

4457

728

Circuit

block

cover

396 580

Friction

spring

for

second-counting

4000

710

(Cal.

7T32B)

4000

712

(Cal.

7T42B)

Circuit

block

4246

700

Buzzer

lead

terminal

4270

710

Battery

connection

(~}

027

974

Pin for

train

wheel

bridge

125

590

Train

wheel

bridge

Second-counting

wheel

4283

581

Spacer

for

center

wheel

and

pinion

241583

Fourth

wheel

and

pinion

231580

Third

wheet

and

pinion

701

580

Fifth

wheel

and

pinion

885

591

Second

intermediate

wheel

for

second-counting

261

580

Minute

wheel

281

580

Setting

wheel

PARTS

CATALOGUE

Cal.

7T32B,

7T42B

4146

710

Step

rotor

4146

—

Chronograph

rotor

for

second

4146

710

Alarm

rotor

4146

710

ANE

Chronograph

rotor

for

minute

4002

700

Coil

block

4002

700

Coil

block

for

chronograph

second

A002

711

—

Coil

block

for

chronograph

minute

Please

see

the

remarks

the

following

pages.

4002

711

Coil

block

for

alarm

4450

710

Switch

lever

383

591

Setting

lever

for

alarm

383 592

Setting

lever

351

580

Winding

stem

for

alarm

282

582

Clutch

wheel

for

alarm

384 580

Yoke

351

580

Winding

stem

282

580

Clutch

wheel

391

591

Train

wheel

setting

lever

4239

710

Rotor

stator

4239

711

Rotor

stator

for

chronograph

second

4239

712

Rotor

stator

for

alarm

4239

713

Rotor

stator

for

chronograph

minute

Center

wheel

and

pinion

4450

702

Switch

lever

4450

701

Switch

lever

100

590

Main

plate

PARTS

CATALOGUE

Cal.

77328,

7T42B

Remarks:

Holding

ring

for

dial

The

type

holding

ring

for

dial

determined

based

on the

design

cases.

Check

the

case

number

and

refer

“SEIKO

Casing

Parts

Catalogue”

choose

corresponding

holding

ring

for

dial.

for

date

dial

guard

for

train

wheel

bridge

For

distinction

between

the

pins,

see

the

illustration

below.

[Pin

for

date

dial

guard}

[Pin

for

train

wheel

bridge]

027

973

027

974

Date

dial

878

527

(Black

figures

white

background)

The

type

date

dial

determined

based

the

design

cases.

Check

the

case

number

and

refer

“SEIKO

Casing

Parts

Catalogue”

choose

corresponding

date

dial.

Hour

wheel

Second-counting

wheel

Center

wheel

and

pinion

Combination

Parts

name

;

Type*

Hour

wheel

Second-counting

wheel

Center

wheel

and

pinion

LAS

——a

—s,

271

580

888

580

221

580

’

===

271588

888

582

221

583

…

Short

type

*Abbreviation

Standard

type

{Movement

type}

PARTS

CATALOGUE

Cal.

7T32B,

7T42B

Circuit

block

identify

the

circuit

blocks

for

respective

calibres,

check

the

holes

the

pattern

shown

the

illust-

rations.

Cal.

7T32B

Cal.

7T42B

ldenufication

hole

Winding

stem

for

alarm

Winding

stem

The

type

winding

stem

for

alarm

and

winding

siem

are

determined

based

the

design

cases.

Check

the

case

number

and

refer

“SEIKO

Casing

Parts

Catalogue”

choose

corresponding

winding

stem.

TECHNICAL

GUIDE

The

explanation

here

only

for

the

particular

points

Cal.

7T32B

and

7T42B.

For

the

repairing,

checking

and

measuring

procedures,

refer

the

“TECHNICAL

GUIDE,

GENERAL

INSTRUCTIONS”.

STRUCTURE

THE

CIRCUIT

BLOCK

Output

terminal

Upconverter

coll

‘Output

terminal

Il.

REMARKS

INSTALLING

THE

BATTERY

necessary

step

after

installing

the

battery

After

the

battery

replaced

with

new

one,

after

the

battery

re-installed

following

the

repairing

procedures,

sure

short-circuit

the

terminal

and

the

circuit

block

cover

with

tweezers

reset

the

circuit

shown

the

illustration

below.

Tweezers

After

resetting

the

circuit, be

sure

reset

the

stopwatch

hands

the

o'clock position.

Pull

out

the

crown

the

o'clock

side

the

second

click.

Press

button

“B”

reset the

stopwatch

second

hand

“0”.

Button

Press

button

“A”

reset

the

stopwatch

minute

hand

“0”.

With each

press

buttons

“B”

and

“A”,

the

ARAN

stopwatch

second

and

minute

hands

move

0.2

Button

seconds

and

0.5

minutes,

respectively.

They

move

automatically

while

the

buttons

are

kept

pressed

and

stop

when

they

are

released.

Cal.

7T32B,

7T42B

TECHNICAL

GUIDE

Cal.

7T32B,

7T42B

REMARKS

DISASSEMBLING

AND

REASSEMBLING

Winding

stem

with

crown

for

alarm

Winding

stem

with

crown

How

remove

Winding

stem

with

crown

the

o'clock

side:

Pull

out the

crown

the

first

click,

and

then

push

the

setting

lever

inserting

the

tip

tweezers

into

hole

“A”

the

illustration

below.

Winding

stem

with

crown

for

alarm

the

o'clock

side:

Pull

out

the

crown

for

alarm

the

first

click,

and

then

push

the

setting

lever

for

alarm

inserting

the

tip

tweezers

into

hole

”B”

the

illustration

below.

SEIKO

TIME

corp

UnaDJUSTED

Remarks

setting

the

winding

stems

The

winding

stems

the

o’clock

and

o’clock

sides

can

used

interchangeably.

However,

note

that

the

type

crown

differs

depending

the

length

winding

stem

and

the

design

cases.

Stopwatch

second

hand

@®

Stopwatch

minute

hand

Remarks

installing

When

installing

those

stopwatch

hands,

check

that

they

accurately

point

the

stopwatch

scales

the

dial.

Stopwatch

second

hand

Remarks

installing

After

installing

the

hands,

check

that

there

proper

clearance

between

the

stopwatch

second

hand

and

other

hands.

Dial

Remarks

installing

When

installing

the

dial,

make

sure

that

its

center

securely

set

the

proper

position.

TECHNICAL

GUIDE

Cal.

7732B,

7T42B

for

date

dial

guard

How

remove

How

install

Turn

the

pins

90°

counterclockwise

loosen

Set the

pins

properly

into

the

grooves.

them

using

screwdriver.

;

; A

Turn

the

pins

90°

clockwise

using

screw-

Pick

the

pins

using

rodico.

driver

fix

them.

Notes:

Never

turn

the

pins

than

90°

clockwise

counterclockwise.

Never

apply

undue

force

the

pins

turning

them

using

screwdriver.

sure

use

screwdriver

that

fits

with

the

slot

the

head.

Lubricating

Lubricate

the

date

jumper

and

the

tips

the

date

dial

shown

the

illustration.

Moebius

Hour

wheel

Remarks

installing

When

installing

the

hour

wheel,

sure

engage

securely

with

the

pinion

the

minute

wheel.

és

Battery

clamp

How

install

Set

the

battery

clamp

securely

the

guide

tube,

taking

care

not

press

down

the

protruded

portion

the

circuit

block

cover.

(er)

Battery

Remarks

installing

After

installing

the

battery,

sure

reset

the

circuit

with

tweezers

shown

the

illustration.

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