Seiko 4F32A Quick start guide

PARTSCATALOGUE/ TECHNICALGUIDE

[SPECIFICATIONS]

Cal. No.

Item 4F32A 8F35A

Movement

8F32A 8F33A

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

Movement

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

Time indication 3 hands (hour, minute and second hands)

Outside diameter

Casing diameter

Height )

Including the

battery portion

(3.9 mm 4.3 mm

Driving system

Additional mechanism

Loss/gain Annual rate at normal temperature 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

Battery

Battery No SEIKOBR2412

Voltage 3.0 V

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

Jewels 4 jewels

Cal. 4F32A, 8F32A

Cal. 8F33A, 8F35A

PARTS CA TALOGUE/TECHNICAL GUIDE (p.1–22)

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

• Step motor (for hour, minute and second hands)

• Ultrasonic motor (for calendar indication)

• Calendar (Leap year indication, month 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)

(Revised: 2008 Apr.)

Revision: 2008.4

PARTS CATALOGUE

Disassembling procedures Figs. : 1 →43

Reassembling procedures Figs. : 43 ←1

Lubricating: Types of oil Oil quantity

Moebius A Normal quantity

Moebius F

➡➡Please see the remarks on the following pages.

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

Ex. : Cal. 8F32A

Note for Cal. 8F32A and 8F35A:

When the hands and the dial

are removed, the dial spacer

will come off if the movement

is turned over. Take care not

to lose the dial spacer.

0016 704

• Circuit block cover screw (4 pcs.)

•Train wheel bridge screw (2 pcs.)

0016 705

•Ultrasonic motor 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

7Circuit block cover

8 4003 424 (Cal. 4F32A)

4003 425 (Cal. 8F32A,

8F33A and 8F35A)

Circuit block

10 4281 119

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

*For disassembling and reassembling,

use the movement holder for exclusive

use with 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

( + ) ( - )

Insulator for battery(B) (white)

2 Battery

5 Insulator for battery (A)

A battery with 5 Insulator for

battery (A) (red) may be installed in

some models. Discard this type of

battery after replacing it with a new

battery of the latest model, to which

the insulator for battery (white) is

attached.

PARTS CATALOGUE

➡➡Please see the remarks on the following 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 wheel 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 wheel

290962 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 wheel bridge screw

15 0125 254

Train wheel bridge

16 Fourth wheel and pinion

17 0231 116

Third wheel and pinion

18 0701 115

Fifth wheel 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 wheel setting lever

0282 117•(Cal. 4F32A, 8F32A,

8F33A, 8F35A)

(update: 2007/04/16)

PARTS CATALOGUE

➡➡Please see the remarks on the following 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 jumper

35 Hour wheel

36 0817 118

Intermediate date driving

wheel and pinion

38 4062 117

Ultrasonic rotor

39 1019 114

24-hour wheel

40 0802 115

Date driving wheel

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 wheel

40 0802 115

Date driving

wheel

36 0817 118

Intermediate date

driving wheel and

pinion

37 0962 118

Second intermediate

wheel for calendar

corrector

35 Hour wheel

34 0810 115

Date jumper

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

Remarks:

●Back plate

Some 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 with dial disk (Only for Cal. 8F33A)

Position of crown

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 with dial disk is determined based on the design of cases.

Check the part code printed on the disk.

7 Circuit block cover

16 Fourth wheel and pinion

30 Center wheel and pinion

35 Hour wheel

•Discrimination of the hand installation height

Cal. 4F and 8F Series watches have numerals printed on

movement to indicate the hand installation height. When

repairing, refer to the table below.

Circuit

block cover

Numeral for

discrimination Center wheel

and pinion Fourth wheel

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 ]

Numeral for

discrimination

Center wheel

and pinion

Fourth wheel

and pinion Hour wheel

[ Cal. 8F35A ]

Numeral for

discrimination

Center wheel

and pinion

Fourth wheel

and pinion Hour wheel

0221 123

27 Winding stem 0351 196

The type of winding stem is determined based on the design of cases.

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

winding stem.

33 Date dial

Position of crown

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 determined based on the design of cases.

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

dial.

Circuit

block cover

0221 115

4461 022

(8F32A)

4461 024

(8F33A)

0221 114

4461 023

(8F32A)

4461 025

(8F33A)

Circuit

block cover

4461 033

0241 446 0273 115

0241 448 0273 116

0241 446 0273 115

(Addition: hand installation height 1, Column of Circuit block cover) 2008.04

(Addition: Column of Circuit block cover) 2008.04

TECHNICAL GUIDE

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

•For the repairing, checking and measuring 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 terminalInput terminal (+)

C-MOS-IC

Input terminal (–)Crystal unit

TECHNICAL GUIDE

II. REMARKS ON DISASSEMBLING AND REASSEMBLING

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 movement directly on a flat metal plate or a riveting plate.

•How to set the hands

Withthe batteryinstalled, placethe movementdirectly

on a flat metal 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 crown clockwise until the date changes.

2) Give the crown four counterclockwise turns to make the date return to the previous date.

3) Turn the crown 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 movement holder are securely set to the corresponding holes of the

movement.

[ 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 ]

5 Insulator for battery (A)

•Be sure to complete the battery replacement work within three minutes. Otherwise, the

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

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

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

(–) and the circuit block cover, as this will 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.

12 o’clock

side

Crown side

12 o’clock side

Crown side

Hole to set the pin

It is highly recommended that the exclusive tool (S-912) be used for removing or

installing the battery, resetting the built-in IC or inputting the calendar data.

Contact SEIKO SERVICE CENTER to purchase this exclusive tool.

S-912

2 Battery

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

1. In a case where a red battery insulator is installed, remove and discard it.

2. To install a new battery with a battery insulator, align the tip of the arrow mark　on　

thesealattached

tothebatterywiththecrown.Then press ittowards theportion fora batterycheck.Be carefulnot todeform

the portion for battery check.

*Make sure that the battery is securely fixed by the four hooking portions.

3. After the battery is installed, turn to the "Necessary procedure after a battery change".

4. After completing the "Necessary procedure after a battery change", turn to “How to input the calendar

data.”

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

[ Cal. 4F32A ]

1. Locate the position where numeral “1” is printed on the case ring, and insert the tips of the

tweezers into the gap between the insulator for battery (A) and the circuit block cover, while

taking care not to damage the coil.

* Take care not to insert the tips of tweezers too deep into the gap as this may damage the coil.

Numeral “2” Insulator for battery (A)

Tweezers

Circuit block cover

Numeral “1”

Insulator for battery (A)

Circuit block cover

2. Pry with the tweezers to disengage the hooking portion of the circuit block cover.

3. Locate the position where numeral “2” is printed on the case ring, and use the tips of the tweezers

in the same manner as in the steps “1” and “2” above and disengage the hooking portion of the

circuit block cover to remove the battery.

Insulator for battery (A)

Hooking portion of

the circuit block cover

Circuit block cover

Tweezers

Hooking portion of

the circuit block cover

Circuit block cover

Insulator for battery (A)

Tweezers

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