Seiko 4F32A User manual

EMMY

WATCH

VINTAGE

RESTORATIONS

Seiko

4F32A,8F32A,8F33A,8F35A

Movement

Parts

(1)

Compiled

EmmyWatch

https.//www.emmywatch.com

SEIKO

CORPORATION

PARTS CATALOGUE/TECHNICALGUIDE

[SPECIFICATIONS]

Cal. No.

Item 4F32A 8F35A

Movement

8F32A 8F33A

(x 1.0)The illustrations refer to Cal. 8F32A.

Movem ent

size

ø18.5 mm

17.7 mm x

18.5 mm

ø26.4 mm

25.6 mm x 25.6 mm

ø18.5 mm

17.1 mm x

18.5 mm

ø26.4 mm

24.8 mm x 24.8 mm

Tim e indication 3 hands (hour, m inute and second hands)

Outside diam eter

Casing diam eter

Height )

Including the

battery portion

(3.9 mm 4.3 mm

Driving system

Additional mechanism

Loss/gain Annual rate at norm al tem perature range: less than 20 seconds

Regulation system Logical regulation (Pattern cutting system: 3 steps)

Measuring gate by quartz tester Use 10-second gate.

SEIKO CR1612,

Sony CR1612,

Matsushita

CR1612

Battery Battery No. SEIKO CR2412, M atsushita CR2412

Voltage 3.0 V

Battery life Approx. 5 years Approx. 8 yearsApprox. 10 years

Jew els 4 jew els

Cal. 4F32A, 8F32A

Cal. 8F33A, 8F35A

PARTS CATALOGUE/ TECHNICAL GUIDE (p. 1 –22)

CATÁLOGO DE PARTES/ GUÍA TÉCNICA (p. 23 –44)

• Step m otor (for hour, m inute and second hands)

• Ultrasonic motor (for calendar indication)

• Calendar (Leap year indication, m onth and date)

Perpetual calendar up to February 28, 2100

• Train wheel setting device

• Electronic circuit reset switch

• Battery life indicator

• Day calendar (Cal. 8F33A)

• Instant calendar (day) setting device (Cal. 8F33A)

PARTS CATALOGUE

Disassem bling procedures Figs. : 1 →43

Reassembling procedures Figs. : 43 ←1

Lubricating: Types of oil Oil quantity

Moebius A Normal quantity

Moebius F

➡➡Please see the rem arks on the follow ing pages.

Cal. 4F32A, 8F32A, 8F33A, 8F35A

Ex. : Cal. 8F32A

Note for Cal. 8F32A and 8F35A:

When the hands and the dial

are rem oved, the dial spacer

will com e off if the m ovement

is turned over. Take care not

to lose the dial spacer.

* Fo r disassem bli ng an d reassem b lin g,

use the movement holder for exclusive

use w ith the respective calibres.

●For the dial side:

• Movement holder 4F3-T

for Cal. 4F32A

• Movement holder 8F3-T

for Cal. 8F32A, 8F33A and 8F35A

●For the case back side:

• Movement holder 4F8F-C

for all Cal. 4F and 8F Series

0016 704

• Circuit block cover screw (4 pcs.)

• Train w heel bridge screw (2 pcs.)

0016 705

• Ultrasonic m otor screw (2 pcs.)

2 Battery

(See the front page)

5 4216 115 (Cal. 4F32A)

4216 117 (Cal. 8F32A,

8F33A and 8F35A)

Insulator for battery (A)

6 0016 704

Circuit block cover screw

7 4461 022 (Cal. 8F32A)

4461 024 (Cal. 8F33A)

4461 033 (Cal. 8F35A)

Circuit block cover

(For Cal. 4F32A, see page 5)

8 4403 218 (Cal. 4F32A)

4403 219 (Cal. 8F32A,

8F33A and 8F35A)

Circuit block

10 4281 118

24-hour contact point

spring

11 4270 415

Battery connection (–)

12 4216 116

Insulator for battery (B)

9 4281 115

Date driving contact

point spring

PARTS CATALOGUE

➡➡Please see the rem arks on the follow ing pages.

Cal. 4F32A, 8F32A, 8F33A, 8F35A

Ex. : Cal. 8F32A

23 4239 115

Rotor stator

24 0261 115 (Cal. 4F32A, 8F32A and 8F33A)

0261 046 (Cal. 8F35A)

Minute w heel and pinion

25 0383 115 (Cal. 4F32A)

0383 116 (Cal. 8F32A, 8F33A and 8F35A)

Setting lever

26 0384 115

Yoke

27 Winding stem

28 0282 032 (Cal. 4F32A and 8F32A)

0282 117 (Cal. 8F33A)

0282 116 (Cal. 8F35A)

Clutch w heel

29 4408 115 (Cal. 4F32A, 8F32A and 8F35A)

Clutch w heel spacer

29 0962 119 (Cal. 8F33A)

First intermediate wheel for calendar corrector

30 Center wheel and pinion

41 0016 705

Ultrasonic stator unit screw

42 4234 115

Ultrasonic stator unit

43 0100 136 (Cal. 4F32A)

0100 137 (Cal. 8F32A, 8F33A and 8F35A)

Main plate

13 4002 115

Coil block

14 0016 704

Train w heel bridge screw

15 0125 254

Train w heel bridge

16 Fourth w heel and pinion

17 0231 116

Third w heel and pinion

18 0701 115

Fifth w heel and pinion

19 4146 116

Step rotor

20 0281 115

Setting wheel

21 0388 117 (Cal. 4F32A)

0388 116 (Cal. 8F32A, 8F33A and 8F35A)

Yoke guard

22 0391 115

Train w heel setting lever

PARTS CATALOGUE

➡➡Please see the rem arks on the follow ing pages.

Cal. 4F32A, 8F32A, 8F33A, 8F35A

Cal. 4F32A, 8F32A & 8F35A

Ex. : Cal. 8F32A

Cal. 8F33A

* Cal. 4F32A, 8F32A and 8F35A do not use the parts 3 , 4 , 31 and 37 .

1 4408 116

(Cal. 8F32A and 8F35A)

Dial spacer

32 0808 126

Date dial guard

33 Date dial

34 0810 115

Date jum per

35 Hour w heel

36 0817 118

Interm ediate date driving

wheel and pinion

38 4062 117

Ultrasonic rotor

39 1019 114

24-hour w heel

40 0802 115

Date driving w heel

3 0963 230

Snap for day star

with dial disk

4 Day star with

dial disk

32 0808 125

Date dial guard

33 Date dial

31 0989 007

Day corrector

wheel

38 4062 117

Ultrasonic rotor

39 1019 115

24-hour w heel

40 0802 115

Date driving

wheel

36 0817 118

Interm ediate date

driving w heel and

pinion

37 0962 118

Second interm ediate

wheel for calendar

corrector

35 Hour w heel

34 0810 115

Date jum per

1919108

PARTS CATALOGUE Cal. 4F32A, 8F32A, 8F33A, 8F35A

Remarks:

●Back plate

Som e models do not use the back plate.

●Case ring

The type of case ring is determined based on the design of cases.

Check the case number and refer to “ SEIKO Casing Parts Catalogue” to choose a corresponding case ring.

4 Day star w ith dial disk (Only for Cal. 8F33A)

Position of crow n

and calendar frame

Cal. No. Color of figurePart code Color of

background

8F33A 0170 072 3 o’clock Black White

The type of day star w ith dial disk is determined based on the design of cases.

Check the part code printed on the disk.

7 Circuit block cover

16 Fourth w heel and pinion

30 Center wheel and pinion

35 Hour w heel

•Discrimination of the hand installation height

Cal. 4F and 8F Series w atches have num erals printed on

movem ent to indicate the hand installation height. When

repairing, refer to the table below .

Circuit

block cover

Num eral for

discrim ination

Center w heel

and pinion

Fourth w heel

and pinion Hour wheel

4461 021 0221 116 0241 449 0273 118

4461 020 0221 114 0241 448 0273 117

[ Cal. 4F32A ]

Numeral for discrimination

PARTS CATALOGUE Cal. 4F32A, 8F32A, 8F33A, 8F35A

[ Cal. 8F32A and 8F33A ]

Num eral for

discrim ination

Center w heel

and pinion

Fourth w heel

and pinion Hour wheel

0221 115 0241 446 0273 115

[ Cal. 8F35A ]

Num eral for

discrim ination

Center w heel

and pinion

Fourth w heel

and pinion Hour wheel

0221 123 0241 446 0273 115

27 Winding stem 0351 196

The type of w inding stem is determ ined based on the design of cases.

Check the case num ber and refer to “ SEIKO Casing Parts Catalogue” to choose a corresponding

winding stem.

33 Date dial

Position of crow n

and calendar frame

Cal. No. Color of figurePart code Color of

background

4F32A 0878 321 3 o’clock Black White

8F35A 0878 301 4 o’clock White Black

8F32A

8F33A 0878 301 3 o’clock White Black

The type of date dial is determ ined based on the design of cases.

Check the case num ber and refer to “ SEIKO Casing Parts Catalogue” to choose a corresponding date

dial.

TECHNICAL GUIDE

•The explanation here is only for the particular points of Cal. 4F32A, 8F32A, 8F33A and 8F35A.

•For the repairing, checking and m easuring procedures, refer to the “ TECHNICAL GUIDE, GENERAL

INSTRUCTIONS” .

I. STRUCTURE OF THE CIRCUIT BLOCK

Cal. 4F32A, 8F32A, 8F33A, 8F35A

[ Cal. 4F32A ]

[ Cal. 8F32A, 8F33A and 8F35A ]

“ ø” terminal

(for resetting the date dial)

“ M” terminal

(for month setting)

“ Y” terminal

(for year setting)

“ D” terminal

(for date setting)

AC terminal

Coil block output terminal

Input terminal (+)

C-MOS-IC

Input terminal (–)Crystal unit

“ ø” terminal

(for resetting

the date dial)

“ M ” terminal (for month setting)

“ D” terminal

(for date setting)

AC terminal

“ Y” terminal

(for year setting)

Coil block output terminal

Input terminal (+)

C-MOS-IC

Input terminal (–)Crystal unit

TECHNICAL GUIDE

II. REM ARKS ON DISASSEM BLING AND REASSEM BLING

Cal. 4F32A, 8F32A, 8F33A, 8F35A

●Hour, minute and second hands

•For disassembling and reassembling, use the movement holder for exclusive use with the respective

calibres.

•When installing the hands, place the m ovem ent directly on a flat m etal plate or a riveting plate.

•How to set the hands

With the battery installed, place the movement directly

on a flat m etal plate or a riveting plate, taking care not

to press down the hooking portions.

To install the hands:

Turn the crown clockwise until the date changes, and install the hands so that they point to the 12 o’clock

position.

To install the hands so that the date changes more accurately as the hands indicate 12 o’clock midnight:

1) Turn the crow n clockwise until the date changes.

2) Give the crown four counterclockw ise turns to m ake the date return to the previous date.

3) Turn the crow n slowly clockwise until the date changes again.

4) Install the hands so that they point to the 12 o’clock position.

•Setting position of the movement on the exclusive movement holder

Check that the pins of the m ovem ent holder are securely set to the corresponding holes of the

movem ent.

[ Movement holder 4F3-T for the dial side of Cal. 4F32A movement ]

[ Movement holder 8F3-T for the dial side of Cal. 8F32A, 8F33A and 8F35A movements ]

Hooking portion

Battery

Pin Hole to set the pin

TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A

[ Movement holder 4F8F-C for the case back side of all Cal. 4F and 8F Series movements ]

2 Battery

5 Insulator for battery (A)

•Be sure to complete the battery replacement w ork w ithin three minutes. Otherw ise, the

calendar data stored in the built-in IC will be erased.

•Before rem oving the old battery, be sure to keep a new battery at hand.

•When installing the new battery, take utm ost care not to short-circuit the battery connection

(–) and the circuit block cover, as this w ill also erase the calendar data.

•How to replace the battery

•How to remove the battery

The case ring has numerals printed on it to show the order of disengaging the hooking portions of

the circuit block cover using the tips of the tweezers.

[ Case ring for Cal. 4F32A ] [ Case ring for Cal. 8F32A, 8F33A and 8F35A ]

12 o’clock

side

Crow n side

12 o’clock side

Crow n side

Hole to set the pin

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