Seiko 4F32A Quick start guide

1
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

2
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.

3
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)

4
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

5
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
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 ]
Numeral for
discrimination
Center wheel
and pinion
Fourth wheel
and pinion Hour wheel
[ Cal. 8F35A ]
Numeral for
discrimination
2
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
2
0221 115
4461 022
(8F32A)
4461 024
(8F33A)
0221 114
1
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

7
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

8
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
Pin Hole to set the pin

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 ]
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
Pin
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.”

10
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
Tweezers