Seiko 4F32A User manual

EMMY WATCH
VINTAGE RESTORATIONS
Seiko 4F32A,8F32A,8F33A,8F35A Movement Parts (1)
Compiled by EmmyWatch - https.//www.emmywatch.com

SEIKO CORPORATION
1
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)

2
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

3
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

4
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
I
a
5
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
1
4461 021 0221 116 0241 449 0273 118
2
4461 020 0221 114 0241 448 0273 117
[ Cal. 4F32A ]
Numeral for discrimination

6
PARTS CATALOGUE Cal. 4F32A, 8F32A, 8F33A, 8F35A
[ Cal. 8F32A and 8F33A ]
Num eral for
discrim ination
2
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
2
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.

7
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

8
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
Pin Hole to set the pin

OO
A!
A
9
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
Pin
Hole to set the pin