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

11
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
[ Cal. 8F32A, 8F33A and 8F35A ]
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 . Then, pry
with tweezers in the direction of the arrow in the illustration below to disengage the hooking
portion of the circuit block cover. While doing so, take 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.
Insulator for battery (A)
2. Locate the position where numeral “2” 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 . Then, pry
with tweezers in the direction of the arrow in the illustration below to remove the battery.
Tweezers
Circuit block cover
Tweezers
Circuit block cover
Hooking portion of
the circuit block cover
Insulator for battery (A)
Insulator for battery (A)
Hooking portion of
the circuit block cover
Circuit block cover Tweezers
Tweezers
Insulator for battery (A)
Hooking portion
of the circuit
block cover
Circuit block cover

12
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
•How to install the battery (For Cal.4F32A, 8F32A, 8F33A and 8F35A)
[A] When the dial and hands are installed, set the time to 6:00 AM or PM.
[B] When the dial and hands are not installed, direct the notched portion of the 24-hour hand toward
the 9 o’clock side.
Note: When installing the battery, take care lest the battery connection (–) should touch the four
hooking portions of the circuit block cover, the grounding portion and the portion for battery
check.
1. Before installing the battery, straighten the three hooking portions of the insulator for battery (A).
Notched portion of 24-hour hand
9 o’clock side
Grounding portion
Hooking portion
Insulator for battery (A)
Portion for battery check
2. First, set a part of the battery into the portion for battery check in the direction indicated by the arrow
1 , and then, press it down to install it completely.
Hooking portion
Portion for battery check
Grounding portion
Note: Set the insulator for battery (A) securely in position, as it easily gets out of position.
1

13
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
•Necessary procedure after battery change
1. After the battery is replaced with a new one, be sure to contact the “AC” terminal of the circuit block
and the (+) surface of the battery with conductive tweezers for more than three seconds, with the
crown at the normal position.
2. Pull out the crown all the way to the second click, and then, push it back in to the normal position.
Repeat this procedure twice.
•If the date dial will not turn, and the second
hand starts moving at 5-second intervals, the
calendar data has been erased.
•If the date dial returns to the current date, and
the second hand starts moving at one-second
intervals,the calendardatais securelyretained.
➪ ➪
Inputthe calendardatafollowing theprocedure
in “Inputting the calendar data”. The battery replacement work has been completed successfully. Next, set the time.
•Inputting the calendar data
•Input each type of calendar data in the following order:
ø
Resetting
the date dial position
Set the date dial to “1”.
Y
Year setting
Set the date dial to
the current year.
M
Month setting
Set the date dial to
the current month.
D
Date setting
Set the date dial to
the current date.
* Be sure to reset the date dial position first.
▲
▲ ▲
•Positions of each terminal of the circuit block
[ Cal. 4F32A ] [ Cal. 8F32A, 8F33A and 8F35A ]
Tweezers
“AC”
“D” (Date)
“Y “ (Year)
“M” (Month) “ø”
“Y “ (Year)
“M” (Month)
“ø”
Tweezers
“AC”
“D” (Date)
■Basic routine of inputting each type of calendar data
1) Contact the (+) surface of the battery and the terminal of the circuit block (“ø”, “Y”, “M” or “D”) with
conductive tweezers once to activate the mode of inputting the desired type of data to the watch.
2) Contact the (+) surface of the battery and the terminal of the circuit block with tweezers repeatedly
to turn the date dial until the desired numeral appears in the calendar frame. Each contact with the
tweezers advances the date dial by one. It advances one by one and will not be advanced quickly.

14
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
■Procedure of inputting the calendar data
1. Pull out the crown all the way to the second click.
2. Reset the position of the date dial. (ø)
First, contact the “ø” terminal and the (+) surface of the battery with conductive tweezers to activate the
date dial resetting mode, and then, contact the two portions repeatedly with tweezers until “1” appears
in the calendar frame.
3. Set the year. (Y)
Contact the “Y” terminal and the (+) surface of the battery with conductive tweezers to activate the year
setting mode. “1” appears in the calendar frame. Then, contact the two portions repeatedly with
tweezers until the current year appears in the calendar frame.
Notes:
* The date dial turns back when the numeral returns from “4” to “1” in the calendar frame.
* If any data has already been input before the year setting mode is activated, a numeral other than “1”
may appear in the calendar frame.
Numeral in the
calendar frame: 1234
One year since
the last leap year Two years since the last leap year Three years since the last leap year Leap year
▲ ▲ ▲
▲
Numeral in the calendar frame
1234
One year since
the last leap year Two years since
the last leap year Three years since the last leap year Leap year
1997
2001
2005
2009
•
•
2085
2089
2093
2097
1998
2002
2006
2010
•
•
2086
2090
2094
2098
1999
2003
2007
2011
•
•
2087
2091
2095
2099
2000
2004
2008
2012
•
•
2088
2092
2096
Year
4. Set the month. (M)
Contactthe“M”terminalandthe (+) surface of the battery with conductive tweezers to activatethemonth
setting mode. “1” appears in the calendar frame. Then, contact the two portions repeatedly with
tweezers until the current month appears in the calendar frame.
Notes:
* The date dial turns back when the numeral returns from “12” to “1” in the calendar frame.
* If any data has already been input before the month setting mode is activated, a numeral other than
“1” may appear in the calendar frame.
Numeral in the
calendar frame: 123456789101112
▲ ▲ ▲ ▲ ▲ ▲
▲ ▲
▲ ▲ ▲
▲

15
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
5. Set the date. (D)
Contact the “D” terminal and the (+) surface of the battery with conductive tweezers to activate the date
setting mode. “1” appears in the calendar frame. Then, contact the two portions repeatedly with
tweezers until the current date appears in the calendar frame.
Notes:
* The date dial only advances and will not turn back in the date setting mode.
* If any data has already been input before the date setting mode is activated, a numeral other than “1”
may appear in the calendar frame.
●How to check the calendar
Pull out the crown to the first click, and push it back in to the normal position within a second.
* Take care not to pull out the crown all the way to the second click. The calendar cannot be checked.
The calendar will be shown in the frame in the following order.
(1) Year (2) Month (3) Date
▲
▲
(1) The second hand moves at 5-second intervals and stops. The number of seconds it has advanced
indicates the number of years that have passed since the last leap year. Five seconds correspond
to one year.
* Before pulling out the crown to the first click, check and remember where the second hand is so
that you can read how many seconds it has advanced.
* If the second hand has advanced 20 seconds (four times of five seconds), the current year is the
leap year.
Quick movement of
the second hand
Number of years since
the last leap years
5 seconds 10 seconds 15 seconds 20 seconds
1 year 2 years 3 years 4 years (leap year)
(2) After the second hand indicates the number of years since the last leap year, the numeral in the
calendar frame changes to indicate the current month for five seconds.
(3) After the current month is shown, the current date is indicated in the calendar frame.
* When the month and date are represented by the same numeral as in the case of “January 1st”,
“February 2nd” and so on, the numeral in the calendar frame quickly advances and moves back
by one to indicate that the month and date numerals are identical.
(4) After the current date is shown, the second hand quickly moves to catch up with the current second
and starts moving at normal one-second intervals thereafter.
(5) If the calendar is correctly set as you intended, set the desired time.
6. Check if the day dial is reset to “1”.
Contact the “ø” terminal and the (+) surface of the battery with conductive tweezers once to check that
“1” appears in the calendar frame. If not, repeat the procedure again starting from step “2” above.
7. Push back the crown in to the normal position, and check if the number of years since the last leap years,
month and date are correctly set. (See “How to check the calendar” below)
*If the year, month or date is not correctly set, repeat the procedure of inputting the calendar data
starting from step “1”.

16
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
7 Circuit block cover
When setting the circuit block cover, take care not to press down the terminal for battery check and the
grounding terminal.
[ Cal. 4F32A ] [ Cal. 8F32A, 8F33A and 8F35A ]
Terminal for battery check Terminal for battery check
8 Circuit block
Before replacing the circuit block, make sure that the crown is pulled out to the first click.
Also, check that the tip of the reset lever is positioned at the center of the eyehole as shown in the
illustration below, and then, reassemble the circuit block.
Note: When setting the circuit block, take care not to press down on the reset lever.
Grounding terminal
Reset lever terminal
9 Date driving contact point spring
10 24-hour contact point spring
•Setting position
24-hour contact
point spring
4281 119
Date driving contact
point spring
4281 115
Note: Thedatedriving contact spring andthe24-hourcontactpointspring contact withthecircuitblock
to drive and control the ultrasonic motor. Handle them with care so as not to bend or straighten
these parts, as this will cause defective contact with the circuit block, resulting in a malfunction
of the ultrasonic motor and defective calendar indication.
To prevent a problem caused by
deformation of the springs, it is recommended that the springs
be replaced with new ones at the time of disassembling or reassembling.

17
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
15 Train wheel bridge
•Setting position of wheels Step rotor
Fifth wheel and pinion
Setting wheel
Minute wheel and pinion
Fourth wheel and pinion
Third wheel and pinion
22 Train wheel setting lever
25 Setting lever
26 Yoke
•Setting position
Train wheel setting lever
Setting lever
Yoke
Note: Take care not to deform the spring portion of the yoke. While the circuit block cover is removed,
do not pull out or push in the crown.
28 Clutch wheel
Install the clutch wheel in such a manner that the gear having smaller
teeth faces toward the center of the center wheel and pinion.
Clutch wheel
31 Day corrector wheel (For Cal. 8F33A)
•How to remove
To remove the day corrector wheel from the second intermediate wheel for calendar corrector, insert
a tip of tweezers into the hole of day corrector wheel as shown in the illustration, and move it toward
the center tube of the movement (in the direction of the arrow in the illustration).
Day corrector wheel
Tip of tweezers
Day corrector
wheel
Clutch wheel
spacer

18
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
32 Date dial guard
•How to remove
1. Lightly lift the A portion of the date dial guard
with tweezers to clear it from the guide pin, and
then, move it in the clockwise direction until it
gets on the guide pin.
2. Release the B portion of the date dial guard in the
same manner as you release the A portion, and
then, move it in the clockwise direction until it
gets on the guide pin.
3. Check that all the three protrusions of the date
dialguardhavecome off from the main plate,and
then, remove the date dial guard.
A portion
Protrusion D
Protrusion C
B portion
Protrusion E
Tweezers
Guide pin
Protrusion
Date dial guard A portion
Note: Take care not to deform the date dial guard, as
it is softly built.
•How to remove the date dial guard in replacing the date dial
(with the parts on the movement side installed)
Be sure to use the movement holder 4F8F-C for
exclusive use for replacing the date dial.
Unlike conventional movements, the date dial guard is not fixed with screws. It is set to the main plate
with the three protrusions, which are caught under the main plate by turning the guard. Then, it is fixed
by the two guide pins. B portion
•How to install
1. Put the date dial guard on the main plate so that
the A and B portions are over the guide pins, as
shown in the illustrations at right.
2. Move protrusion D of the date dial guard in the
counterclockwise direction so that it is caught
under the main plate.
3. Slightly move protrusions C and E in the
counterclockwisedirection alternatelytoset them
under the main plate. While doing so, set the A
and B portions of the date dial guard to the guide
pins.
Note: Take care not to press down the ultrasonic
rotorpinion whileinstallingthedatedial guard.
Ultrasonic
rotor pinion
Note: Never remove the date driving wheel and the
24-hour wheel. Otherwise, the date driving
contact point spring and the 24-hour contact
point spring will come off.
24-hour wheel
Date driving
wheel

19
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
36 Intermediate date driving wheel and pinion
38 Ultrasonic rotor
39 24-hour wheel
40 Date driving wheel
•Setting position
(For Cal. 4F32A, 8F32A and 8F35A)
Refer to the illustration at right.
Note: Take care not to damage or deform the pinions of the ultrasonic rotor and date driving wheel in
reassembling and disassembling, as they are made of plastic.
38 Ultrasonic rotor
42 Ultrasonic stator unit
Note: When holding the ultrasonic rotor and ultrasonic stator unit with tweezers, be sure to catch the
portions illustrated below. Otherwise, their functions will be adversely affected.
24-hour wheel
Ultrasonic rotor
Intermediate date driving
wheel and pinion
Date driving wheel
Tweezers Tweezers
Tweezers
Ultrasonic stator unitUltrasonic rotor
•Setting position
(For Cal. 8F33A)
36 Intermediate date driving wheel and pinion
37 Second intermediate wheel for calendar corrector
38 Ultrasonic rotor
39 24-hour wheel
40 Date driving wheel
Refer to the illustration at right.
Note: Take care not to damage or deform the pinions of the ultrasonic rotor and date driving wheel in
reassembling and disassembling, as they are made of plastic.
Second intermediate
wheel for calendar
corrector
24-hour wheel
Ultrasonic rotor
Intermediate date driving
wheel and pinion
Date driving wheel

20
TECHNICAL GUIDE Cal. 4F32A, 8F32A, 8F33A, 8F35A
III. VALUE CHECKING
●Coil block resistance
3.6 KΩ~ 4.0 KΩ
1. Measure the resistance with the coil block installed on the main plate.
2. Apply the red and black probes of the tester to the patterns of the coil lead terminal. While doing so,
take care not to touch the end portion of the coil lead terminal, as this will break the coil wire.
●Current consumption
For the whole movement : Less than 1.3 µA (with voltage of 3.0 V supplied from a battery)
For the circuit block alone : Less than 0.9 µA (with voltage of 3.0 V supplied from a battery)
2. Apply the red and black probes of the tester to the circuit block cover and the pattern of the (–) terminal
of the circuit block, respectively.
3. After connecting the tester, contact the “AC” terminal of the circuit block and the circuit block cover
with conductive tweezers. Then, after approximately 20 seconds, start measurement, checking that
a stable measurement is obtained.
Measuring the coil block resistance
1. Check that the crown is in the normal (pushed in) position.
Measuring the current consumption for the whole movement
Measuring the current consumption for the circuit block alone
1. Connect the tester to the input terminals (+) and (–), and contact the “AC” and (+) terminals with
conductive tweezers. Then, after approximately 10 seconds, start the measurement, checking that
a stable measurement is obtained.
* While measuring current consumption, be sure to protect the circuit block from light with black
cloth or the like, as the light may increase the current consumption, resulting in an inaccurate
measurement.
Note: When the current consumption for the whole movement exceeds the standard value while the
current consumption for the circuit block alone is within the standard value range, a driving pulse
may be generated to compensate for the heavy load applied on the gear train, etc. In that case,
overhaul and clean the movement parts, and then, measure the current consumption for the whole
movement again.
Black probe
Red probe