Seiko | 8F33 | Specifications | Seiko 8F33 Specifications

Seiko 8F33 Specifications
PARTS CATALOGUE / TECHNICAL GUIDE
Cal. 4F32A, 8F32A
Cal. 8F33A, 8F35A
PARTS CATALOGUE / TECHNICAL GUIDE (p. 1 – 22)
CATÁLOGO DE PARTES / GUÍA TÉCNICA (p. 23 – 44)
[SPECIFICATIONS]
Cal. No.
Item
4F32A
8F32A
8F33A
8F35A
Movement
The illustrations refer to Cal. 8F32A.
Movement
size
Outside diameter
ø18.5 mm
17.7 mm x
18.5 mm
ø26.4 mm
25.6 mm x 25.6 mm
Casing diameter
ø18.5 mm
17.1 mm x
18.5 mm
ø26.4 mm
24.8 mm x 24.8 mm
3.9 mm
4.3 mm
Height
Including the
( battery
portion )
(x 1.0)
Time indication
3 hands (hour, minute and second hands)
Driving system
• Step motor (for hour, minute and second hands)
• Ultrasonic motor (for calendar indication)
Additional mechanism
• 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)
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.
Battery
Battery No.
SEIKO CR1612,
Sony CR1612,
Matsushita
CR1612
Voltage
3.0 V
Battery life
Approx. 5 years
Jewels
SEIKO CR2412, Matsushita CR2412
Approx. 10 years
Approx. 8 years
4 jewels
1
PARTS CATALOGUE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
Disassembling procedures Figs. :
1
→
43
Reassembling procedures Figs. :
43
←
1
Lubricating:
Types of oil
Oil quantity
Moebius A
Normal quantity
Moebius F
Ex. : Cal. 8F32A
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
9
4281 115
Date driving contact
point spring
10
4281 118
24-hour contact point
spring
11
4270 415
Battery connection (–)
12
4216 116
Insulator for battery (B)
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.
* 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
➡
2
0016 704
• Circuit block cover screw
• Train wheel bridge screw
(4 pcs.)
(2 pcs.)
0016 705
• Ultrasonic motor screw
(2 pcs.)
Please see the remarks on the following pages.
PARTS CATALOGUE
Ex. : Cal. 8F32A
➡
Cal. 4F32A, 8F32A, 8F33A, 8F35A
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
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
29
4408 115 (Cal. 4F32A, 8F32A and 8F35A)
Clutch wheel 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
Please see the remarks on the following pages.
3
PARTS CATALOGUE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
Cal. 8F33A
Cal. 4F32A, 8F32A & 8F35A
Ex. : Cal. 8F32A
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
4
0963 230
Snap for day star
with dial disk
4
Day star with
dial disk
31
0989 007
Day corrector
wheel
32
0808 125
Date dial guard
33
Date dial
34
0810 115
Date jumper
35
Hour wheel
36
0817 118
Intermediate date
driving wheel and
pinion
37
0962 118
Second intermediate
wheel for calendar
corrector
38
4062 117
Ultrasonic rotor
39
1019 114
24-hour wheel
38
4062 117
Ultrasonic rotor
40
0802 115
Date driving wheel
39
1019 115
24-hour wheel
40
0802 115
Date driving
wheel
* Cal. 4F32A, 8F32A and 8F35A do not use the parts
➡
3
3 , 4 , 31 and 37 .
Please see the remarks on the following pages.
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)
Cal. No.
Part code
Position of crown
and calendar frame
Color of figure
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.
Numeral for discrimination
[ Cal. 4F32A ]
Numeral for
Circuit
discrimination block cover
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
1
2
5
PARTS CATALOGUE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
[ Cal. 8F32A and 8F33A ]
Numeral for
discrimination
Center wheel
and pinion
Fourth wheel
and pinion
Hour wheel
0221 115
0241 446
0273 115
Center wheel
and pinion
Fourth wheel
and pinion
Hour wheel
0221 123
0241 446
0273 115
2
[ Cal. 8F35A ]
Numeral for
discrimination
2
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
Cal. No.
Part code
Position of crown
and calendar frame
Color of figure
Color of
background
4F32A
0878 321
3 o’clock
Black
White
8F32A
8F33A
0878 301
3 o’clock
White
Black
8F35A
0878 301
4 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.
6
TECHNICAL GUIDE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
• 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 ]
“M” terminal
(for month setting)
“Y” terminal
(for year setting)
Input terminal (+)
Coil block output terminal
C-MOS-IC
AC terminal
“ø” terminal
(for resetting the date dial)
“D” terminal
(for date setting)
Crystal unit
Input terminal (–)
[ Cal. 8F32A, 8F33A and 8F35A ]
“M” terminal (for month setting)
“ø” terminal
(for resetting
the date dial)
Input terminal (+)
Coil block output terminal
C-MOS-IC
“Y” terminal
(for year setting)
“D” terminal
(for date setting)
Crystal unit
Input terminal (–)
AC terminal
7
TECHNICAL GUIDE
II.
Cal. 4F32A, 8F32A, 8F33A, 8F35A
REMARKS ON DISASSEMBLING AND REASSEMBLING
• 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.
Battery
● Hour, minute and second hands
• How to set the hands
With the battery installed, place the movement directly
on a flat metal plate or a riveting plate, taking care not
to press down the hooking portions.
To install the hands:
Hooking portion
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 ]
Pin
Hole to set the pin
[ Movement holder 8F3-T for the dial side of Cal. 8F32A, 8F33A and 8F35A movements ]
Pin
8
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 ]
Pin
Hole to set the pin
2
Battery
5
Insulator for battery (A)
• How to replace the battery
• 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 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
Crown side
12 o’clock side
Crown side
9
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.
Tweezers
Numeral “1”
Circuit block cover
2.
Insulator for battery (A)
Insulator for battery (A)
Numeral “2”
Tweezers
Circuit block cover
Pry with the tweezers to disengage the hooking portion of the circuit block cover.
Insulator for battery (A)
Insulator for battery (A)
Tweezers
Circuit block cover
Tweezers
Hooking portion of
the circuit block cover
3.
10
Circuit block cover
Hooking portion of
the circuit block cover
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.
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)
Insulator for battery (A)
Tweezers
Tweezers
Circuit block cover
Hooking portion of
the circuit block cover
Circuit block cover
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.
Insulator for battery (A)
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
Tweezers
11
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.
Notched portion of 24-hour hand
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).
Note: Set the insulator for battery (A) securely in position, as it easily gets out of position.
Insulator for battery (A)
Grounding portion
Hooking portion
Hooking portion
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.
1
Grounding portion
Portion for battery check
12
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 returns to the current date, and
the second hand starts moving at one-second
intervals, the calendar data is securely retained.
• If the date dial will not turn, and the second
hand starts moving at 5-second intervals, the
calendar data has been erased.
➪
➪
Input the calendar data following the procedure
in “Inputting the calendar data”.
The battery replacement work has been
completed successfully. Next, set the time.
• Inputting the calendar data
■ 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.
• Input each type of calendar data in the following order:
ø
Y
Set the date dial to
the current year.
Set the date dial to “1”.
Month setting
D
▲
Year setting
▲
▲
Resetting
the date dial position
M
Set the date dial to
the current month.
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 ]
“AC”
Tweezers
“Y “ (Year)
“Y “ (Year)
“D” (Date)
Tweezers
“M” (Month)
“ø”
“M” (Month)
“ø”
“D” (Date)
“AC”
13
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.
2
Two years since
the last leap year
3
4
▲
One year since
the last leap year
▲
1
▲
Numeral in the
calendar frame:
Three years since
the last leap year
Leap year
▲
Numeral in the calendar frame
1
2
3
4
One year since
the last leap year
Two years since
the last leap year
Three years since
the last leap year
Leap year
1998
2002
2006
2010
•
•
2086
2090
2094
2098
1999
2003
2007
2011
•
•
2087
2091
2095
2099
Year
4.
1997
2001
2005
2009
•
•
2085
2089
2093
2097
2000
2004
2008
2012
•
•
2088
2092
2096
Set the month. (M)
Contact the “M” terminal and the (+) surface of the battery with conductive tweezers to activate the month
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.
10
11
▲
9
▲
8
▲
7
▲
6
▲
5
▲
4
▲
3
▲
14
2
▲
▲
▲
1
▲
Numeral in the
calendar frame:
12
TECHNICAL GUIDE
5.
Cal. 4F32A, 8F32A, 8F33A, 8F35A
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.
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)
● 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
5 seconds
10 seconds
15 seconds
20 seconds
Number of years since
the last leap years
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.
15
TECHNICAL GUIDE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
* If the year, month or date is not correctly set, repeat the procedure of inputting the calendar data
starting from step “1”.
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 ]
Terminal for battery check
8
[ Cal. 8F32A, 8F33A and 8F35A ]
Terminal for battery check
Grounding terminal
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.
Reset lever terminal
9
Date driving contact point spring
10
24-hour contact point spring
• Setting position
Date driving contact
point spring
24-hour contact
point spring
4281 115
4281 118
Note: The date driving contact spring and the 24-hour contact point spring contact with the circuit block
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.
16
TECHNICAL GUIDE
15
Cal. 4F32A, 8F32A, 8F33A, 8F35A
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
Train wheel setting lever
• Setting position
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
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
spacer
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).
Tip of tweezers
Day corrector
wheel
Day corrector wheel
17
TECHNICAL GUIDE
32
Cal. 4F32A, 8F32A, 8F33A, 8F35A
Date dial guard
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 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
dial guard have come off from the main plate, and
then, remove the date dial guard.
Protrusion
A portion
Date dial guard
Tweezers
Note: Take care not to deform the date dial guard, as
it is softly built.
Guide pin
• 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.
B portion
Protrusion C
Slightly move protrusions C and E in the
counterclockwise direction alternately to set 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
rotor pinion while installing the date dial guard.
Ultrasonic
rotor pinion
Protrusion E
• How to remove the date dial guard in replacing the date dial
(with the parts on the movement side installed)
18
Protrusion D
Be sure to use the movement holder 4F8F-C for
exclusive use for replacing the date dial.
24-hour wheel
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.
Date driving
wheel
A portion
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
24-hour wheel
Ultrasonic rotor
Intermediate date driving
wheel and pinion
• Setting position
(For Cal. 4F32A, 8F32A and 8F35A)
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.
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
24-hour wheel
Second intermediate
wheel for calendar
corrector
Ultrasonic rotor
Intermediate date driving
wheel and pinion
• Setting position
(For Cal. 8F33A)
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.
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.
Ultrasonic rotor
Ultrasonic stator unit
Tweezers
Tweezers
Tweezers
19
TECHNICAL GUIDE
III.
Cal. 4F32A, 8F32A, 8F33A, 8F35A
VALUE CHECKING
● Coil block resistance
3.6 KΩ ~ 4.0 KΩ
Measuring the coil block resistance
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)
Measuring the current consumption for the whole movement
1.
Check that the crown is in the normal (pushed in) position.
Black probe
Red probe
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 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.
20
TECHNICAL GUIDE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
● Time accuracy
• The time accuracy measurement should be made in an environment with the temperature at the range
of 23° C ± 2° C and humidity between 50% and 60%.
Normal loss/gain at a normal temperature (23° C) : +0.020 ~ +0.140 sec./day
[A] Check the loss/gain of the watch with the case back closed following the procedure below, and
determine the method of adjustment and repair.
Measuring procedure
Measured loss/gain (–/+)
1
Set the gate of the quartz tester
to “10”.
2
Pull the crown to the second
click to stop the second hand.
3
Place the watch on the
microphone with its 3 o’clock
side up, and read the loss/gain.
Normal
: +0.020 ~ +0.140
Defective : –0.012 ~ +0.019
+0.141 ~ +0.204
Defective : –0.013 or smaller
+0.205 or greater
Method of adjustment/repair
➡ Time accuracy adjustment is
not necessary.
➡ Adjust the time accuracy.
➡ Replace the circuit block with
a new one.
➡
Check the time accuracy.
➡
(Then, adjust the time accuracy.)
Notes:
* The loss/gain indicated by the tester varies slightly from measurement to measurement. Therefore,
make several measurements to get an average loss/gain.
* When measuring time accuracy, leave the watch untouched for 30 minutes after it is placed on the
microphone. Then, start the measurement.
[B] Time accuracy adjustment by pattern cutting
Cut and remove the overhanging pattern with tweezers to adjust the
time accuracy.
Notes:
* After cutting the pattern, check that it is completely detached.
* Take care not to let the cut pattern get inside the movement.
Pattern cutting combination and adjustment range
By cutting one or both of the patterns P1 and P2, the loss/gain of
the watch can be adjusted by an amount between –0.064 and
+0.032 sec./day.
Pattern
P2
P1
Amount of loss/gain
from base accuracy
–0.064
–0.032
+0.032
: Cut
: Connected
P1
P2
Note: Once the patterns are cut off, reconnecting them by soldering may not adjust the loss/gain by
the amount specified in the table above and may also change the temperature characteristics
of the watch. Adjust the loss/gain, therefore, only by cutting the patterns.
21
TECHNICAL GUIDE
Cal. 4F32A, 8F32A, 8F33A, 8F35A
[C] Example of the time accuracy adjustment
Step 1
Measure the loss/gain of the watch with the case back closed.
Obtained loss/gain: +0.180 sec./day
Step 2
Find the amount of deviation from the allowable range of loss/gain between +0.020 and
+0.140 sec./day.
Deviation from the allowable accuracy: +0.180 – (+0.140) = +0.040 sec./day
Step 3
Remove the circuit block and adjust the accuracy.
Find a value of loss/gain from the table above that can offset the deviation obtained
in Step 2 and bring the loss/gain within the allowable range. In this example, –0.064
sec./day is adequate, so cut the pattern P2.
Step 4
Install the circuit block you have adjusted to the movement, and measure the loss/gain of
the watch with the case back closed to check if the obtained loss/gain is within the allowable
range between +0.020 and +0.140 sec./day.
[D] Remarks on measuring the time accuracy
• Measure the loss/gain at a temperature range of 23° C ± 2° C with humidity between 50% and 60%.
• If you hold the watch in your hand for a long time before measuring the accuracy, the temperature
of the watch itself will rise and a stable measurement may not be obtained even in the environment
specified above. In that case, leave the watch untouched in the above environment for a sufficient
period of time, and then, start the measurement.
• Use a quartz tester QT-2100 that can measure a loss/gain up to 0.001 sec./day.
■ Tips on repairing
The following are the troubleshooting guide for the problems particular to Cal. 4F32A, 8F32A, 8F33A and
8F35A.
Problem
The date dial will not
move or the date does
not change properly.
22
Possible cause
Remedies
1) Wrong calendar data was input.
1) Newly input the calendar data.
2) Defects in the ultrasonic motor
2) Check the wheels around the ultrasonic
motor.
3) Defects in the circuit block and
contact point springs
3) Replace the circuit block, 24-hour
contact point spring and date driving
contact point spring all in a set.
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