Seiko 6A32 Installer manual

PARTS CATALOGUE /TECHNICAL GUIDE
Cal. 6A32A
Cal. No. 6A32A
Movement
Movement
size (mm)
Time indication
Outside diameter
Casing diameter
Height )
Including
battery portion
(
Driving system
Additional mechanism
Loss/gain
Regulation system
Measuring gate by quartz tester
Battery
Battery No.
Voltage
Battery life
Jewels
SEIKO
Brand
Ø 27.8
Ø 27.3
3.69
3 hands (hour, minute and second hands)
Step motor (hour, minute and second hands)
Electronic driving motor for calendar indication
●Fully automatic calendar (No calendar adjustment required at the
end of a month, nor for a leap year)
●Initial position adjustment (Position adjustment for the second hand
and date)
●Train wheel setting device
●Electronic circuit reset switch
●Battery life indicator
Crown
Operation
Normal position
First click position
Second click position
Free
Monthly rate at normal temperature range: less than 20 seconds
Nil.
Use 10-second gate.
Silver Oxide Battery SB-AP (SR927SW)
1.55 V
Approximately 4 years
Nil.
Date, month, year adjustments (by turning the crown either clockwise
or counterclockwise) (electronic system)
Hand position adjustments, Second regulation, Reset switch

2
Cal. 6A32A
PARTS CATALOGUE
●Order of disassembly for the hands, dial and wheels on the back side
1HOUR, MINUTE AND SECOND HANDS
2DIAL
3DATE DIAL GUARD
0808 051
4DATE DIAL
5INTERMEDIATE 24-HOUR WHEEL
0817 046
624-HOUR WHEEL
1019 001
7HOUR WHEEL
0273 031
(for models of the medium hand installation
height)
8DATE DRIVING WHEEL
0802 035
9INTERMEDIATE DATE DRIVING WHEEL C
0817 045

3
Cal. 6A32A
PARTS CATALOGUE
●Order of disassembly for the battery, circuit block, wheels on the front side and switching mechanism
10 SILVER OXIDE BATTERY
11
POWER SWITCH SPRING SCREWS
0016 121
12 POWER SWITCH SPRING
4245 492
(for models of the medium
hand installation height)
13 INSULATOR FOR CIRCUIT
BLOCK
4216 101
16 CIRCUIT BLOCK SPACER
4408 137
17 24-HOUR ARBOR
1014 023
18 WINDING STEM SWITCH
LEVER
4450 016
19 TRAIN WHEEL BRIDGE
0125 266
14 CIRCUIT BLOCK SCREW
0016 121
15 CIRCUIT BLOCK
4004 104
20 WINDING STEM SWITCH
LEVER SPRING
4238 003
21 FOURTH WHEEL AND PINION
0241 214
(for models of the medium
hand installation height)
22 THIRD WHEEL AND PINION
0231 454 23 FIFTH WHEEL AND PINION
0701 450
24 INTERMEDIATE DATE
DRIVING WHEEL A
0817 043
25 STEP ROTORS
4146 453
26 TRAIN WHEEL SETTING LEVER
0391 027
27 BATTERY CONNECTION(-)
4270 239
28 MINUTE WHEEL AND PINION
0261 451
29 SETTING WHEEL
0281 452
30 INTERMEDIATE DATE
DRIVING WHEEL B
0817 044
31 CENTER WHEEL AND PINION
0221 064
(for models of the medium
hand installation height)
32 COIL BLOCKS
4002 923
34 SETTING LEVER
0383 891
35 YOKE
0384 452
36 WINDING STEM
0351 071
37 CLUTCH WHEEL
0282 452
38 SWITCH CAM
4295 006
39 MAIN PLATE
33 ROTOR STATORS
4239 450

4
Cal. 6A32A
PARTS CATALOGUE
[Parts list]
There are different types of parts which are determined based on the case design or hand installation height.
To choose the appropriate one, refer to “WATCH PARTS CATALOGUE CD-ROM.”
For models of the medium
hand installation height
For models of the medium
hand installation height
For models of the medium
hand installation height
For models of the medium
hand installation height
Inprinted mark "2"
PARTS NAME
DATE DIAL GUARD
DATE DIAL (INCOMPLETE)
INTERMEDIATE 24-HOUR WHEEL
24-HOUR WHEEL
HOUR WHEEL
DATE DRIVING WHEEL
INTERMEDIATE DATE DRIVING WHEEL C
SILVER OXIDE BATTERY
POWER SWITCH SPRING SCREW
POWER SWITCH SPRING
INSULATOR FOR CIRCUIT BLOCK
CIRCUIT BLOCK SCREW
CIRCUIT BLOCK
CIRCUIT BLOCK SPACER
24-HOUR ARBOR
WINDING STEM SWITCH LEVER
TRAIN WHEEL BRIDGE
WINDING STEM SWITCH LEVER SPRING
FOURTH WHEEL AND PINION
THIRD WHEEL AND PINION
FIFTH WHEEL AND PINION
INTERMEDIATE DATE DRIVING WHEEL A
STEP ROTOR
TRAIN WHEEL SETTING LEVER
BATTERY CONNECTION(-)
MINUTE WHEEL AND PINION
SETTING WHEEL
INTERMEDIATE DATE DRIVING WHEEL B
CENTER WHEEL AND PINION
COIL BLOCK
ROTOR STATOR
SETTING LEVER
YOKE
WINDING STEM
CLUTCH WHEEL
SWITCH CAM
MAIN PLATE
TOTAL NUMBER OF PARTS (TO BE ASSEMBLED)
Refer to WATCH PARTS
CATALOGUE CD-ROM.
PARTS CODE
0808 051
-
0817 046
1019 001
0273 031
0802 035
0817 045
-
0016 121
4245 492
4216 101
0016 121
4004 104
4408 137
1014 023
4450 016
0125 266
4238 003
0241 214
0231 454
0701 450
0817 043
4146 453
0391 027
4270 239
0261 451
0281 452
0817 044
0221 064
4002 923
4239 450
0383 891
0384 452
0351 071
0282 452
4295 006
0100 293
SB-AP (SR927SW)
(11)(12)(13)(14)
(33)
Refer to WATCH PARTS
CATALOGUE CD-ROM.
No.
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
1
1
1
1
1
1
1
1
4
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
2
1
1
1
1
1
1
44
REMARK
Number
of parts

5
TECHNICAL GUIDE Cal. 6A32A
1. How to pull out the winding stem
With the crown at the normal position, using a tool
such as a pair of tweezers, press down the
designated area indicated by “PUSH” (as shown in
the illustration on the right) of the setting lever. And
then, pull out the winding stem to which the crown
is attached.
DISASSEMBLY
2. How to remove the hands
Reassemble the winding stem. Turn the hour, minute and second hands to align them pointing in the
same direction, and then remove them all together.
When using a tool such as a hand remover, exercise care so as not to damage the calendar frame or the
dial with the tool during the hand removing process. Align the hands together at a position where you
can avoid touching the calendar frame with the tool, in consideration of the orientation of the calendar
frame on the dial.
To prevent damage to the surface of the hands and dial, slip a thin plastic sheet between the dial and
remover.
3. How to remove the dial
From the lateral side at the foot positions of the dial
(indicated in the illustration on the right), insert the
tip of a driver or tweezers into the gap between the
lower surface of the dial and main plate to gradually
lift up the dial and remove it.
While doing this, make sure to lift the dial up
gradually one side after another. Lifting the dial up
only from one side may break the foot of the dial.
For disassembly and reassembly, make sure to use the all-purpose
movement holder.
Designated area of the setting stem
Foot positions of the dial

6
TECHNICAL GUIDE Cal. 6A32A
Installation positions • Lubrication points • Remarks
Reassembly (1)
Lubricate the main plate.
❇Make sure to lubricate the exact lubrication points with an adequate
amount of the correct type of oil.
normal quantity
Main plate (back side)
1Center pipe (AO-3)
2Lower guide hole of the minute wheel
and pinion (AO-3)
3Guide pin of the train wheel setting
lever (AO-3)
4Pinofthe setting lever (AO-3)
5Pin of the setting wheel (AO-3)
6 & 7 Lower holes of the rotor (AO-2)

7
TECHNICAL GUIDE Cal. 6A32A
Reassembly (2)
Lubricate the switching
mechanism.
❇Install the parts in the number order shown in the illustration below,
paying attention to the following:
mounting positions,
direction of mounting,
type of oil, lubrication point(s) and amount of lubrication.
normal quantity liberal quantity
Installation positions • Lubrication points • Remarks
1Clutch wheel
5Setting lever (AO-3)
2Switch cam
6Winding stem switching lever spring
3Winding stem (AO-3)
4Yoke (AO-3)

8
TECHNICAL GUIDE Cal. 6A32A
Installation positions • Lubrication points • Remarks
Reassembly (3)
Reassemble the wheels and
train wheel bridge.
❇Install the parts in the number order shown in the illustration below,
paying attention to the following:
mounting positions,
direction of mounting,
type of oil, lubrication point(s) and amount of lubrication.
normal quantity
7Setting wheel
8Minute wheel and pinion
10 Rotor
11 Rotor
9Battery connection (-)
1Rotor stator
2Rotor stator
3Coil block
4Coil block
12 Fifth wheel and pinion
13 Intermediate date driving wheel A
14 Third wheel and pinion
6 Intermediate date driving wheel B
5Center wheel and pinion (AO-3)

9
TECHNICAL GUIDE Cal. 6A32A
When holding the coil block, be careful not to
touch the coil board or coil wire.
15 Train wheel setting lever
16 Fourth wheel and pinion (AO-3)
When handling the plastic parts, use a pair of
tweezers to securely hold them, paying attention
not to damage the teeth or pinions.
Positions of the guide pins for train wheel bridge
17 Train wheel bridge

10
TECHNICAL GUIDE Cal. 6A32A
Reassembly (4)
Lubricate the train wheel
bridge.
❇Make sure to lubricate the exact lubrication points with an adequate
amount of the correct type of oil.
Installation positions • Lubrication points • Remarks
normal quantity
1Minute wheel and pinion (AO-3)
4Upper pivot of the rotor (AO-2)
3Upper pivot of the rotor (AO-2)
2Pin for crown switch (AO-3)

11
TECHNICAL GUIDE Cal. 6A32A
❇Install the parts in the number order shown in the illustration below,
paying attention to the following:
mounting positions,
direction of mounting,
type of oil, lubrication point(s) and amount of lubrication.
normal quantity
Installation positions • Lubrication points • Remarks
Reassembly (5)
Reassemble the circuit block
spacer and winding stem
switch lever.
Note 2
Remarks on installation of the winding stem switch lever
Make sure that the winding stem switch lever does not
overlap the tip of the winding stem switch lever spring.
Note 1
Installation position of the 24-H arbor
Place the 24-H arbor in the position where it does not cover
the holes indicated in the illustration on the left, as the
switch pins of the circuit block will be inserted into those
holes.
1Circuit block spacer
324-H arbor
Avoid moving the movement after
installing the spacers, as the spacers
are not yet fastened and they can
easily drop off.
2Circuit block spacer
4Winding stem switch lever (AO-3)
Refer to the Note 1 below.
Refer to the Note 2 below.

12
TECHNICAL GUIDE Cal. 6A32A
Reassembly (6)
Reassemble the circuit block.
❇Install the parts in the number order shown in the illustration below,
paying attention to the following:
mounting positions,
direction of mounting.
Installation positions • Lubrication points • Remarks
1Circuit block
2Circuit block screw
2Switch lever springs (4 pieces)
1Switch lever
3Insulator for circuit block
Reassembly (7)
Reassemble the switch lever.
❇Install the parts in the number order shown in the illustration below,
paying attention to the following:
mounting positions,
direction of mounting.
The coil block is closely positioned.
Be careful not to cut the coil wire.

13
TECHNICAL GUIDE Cal. 6A32A
Installation positions • Lubrication points • Remarks
Note 1
24-hour wheel
Make sure that the 24-hour wheel is set in the
correct direction.
Ensure that the flattened side is positioned properly
as shown in the illustration.
Reassembly (8)
Reassemble the wheels on the back side
CAUTION!
•When mounting the plastic parts, carefully check
that the teeth of the wheels and pinions are properly
engaged before setting the parts.
•Use a pair of tweezers to securely hold the plastic
parts, paying attention so as not to damage the
teeth or pinions.
Pinion of the intermediate date driving wheel B
6Date dial
5Intermediate 24-hour wheel
1 Intermediate date driving wheel C
2Date driving wheel
3 Hour wheel
424-hour wheel
Refer to the Note 1 below.

14
TECHNICAL GUIDE Cal. 6A32A
Installation positions • Lubrication points • Remarks
Reassembly (9)
Reassemble the date dial
guard.
The date dial guard is fastened at the three positions
(A, B and C) that are engaged with the date dial guard
fixing guards and guide pins of the main plate.
<Reassembly>
1. Turn the date dial guard clockwise until it is halfway
engaged with the date dial guard fixing guards at
the A, B and C positions each.
2. While further turning the date dial guard clockwise,
press the date dial guard guide holes toward the
guide pins of the main plate at the A and B positions
until the date dial guard fixing guards are completely
engaged with the main plate.
<Disassembly>
1. Using a pair of tweezers, lift the A position of the
date dial guard to disengage the date dial guard
guide hole and the guide pin of the main plate.
Turn the date dial guard counterclockwise until it
overrides the guide pins of the main plate.
2. Using a pair of tweezers, lift the B position of the
date dial guard to disengage the date dial guard
guide hole and the guide pin of the main plate.
Turn the date dial guard counterclockwise until it
overrides the guide pins of the main plate.
3. Turn the date dial guard counterclockwise until it is
disengaged from the date dial guard fixing guards
of the main plate. And then remove the date dial
guard.
❇Install the parts, paying attention to the following:
mounting positions,
direction of mounting.
BA
C
Date dial guard fixing guard
(C positions)
Guide pin (B position)
Date dial guard fixing guard (B positions)
Guide pin (A position)
Date dial guard fixing guard (A positions)

15
TECHNICAL GUIDE Cal. 6A32A
●Coil block resistance
1.28 - 1.48kW
[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 may break the coil wire.
●Current consumption
For the whole movement: less than 1.61mA
For the circuit block alone: less than 0.3 mA
[Measuring the current consumption for the whole movement]
1. Apply the red probe of the tester to the pattern of the positive (+) terminal of the circuit block and the black
probe of the tester to the pattern of the negative (-) terminal of the coil block.
2. After connecting the tester, wait for approximately one minute until the current consumption becomes
stable. When the current consumption shows stable measurements, read the measurement.
[Measuring the current consumption for the circuit block alone]
1. Connect the tester to the positive (+) and negative (-) input terminals of the circuit block. Wait for
approximately one minute until the current consumption becomes stable. When the currency consumption
shows stable measurements, read the measurement.
*Light may increase the current consumption, resulting in an inaccurate measurement. Protect the movement from
light with a black cloth or similar, and take a measurement again.
VALUE CHECKING
CAUTION
When the current consumption for the whole movement exceeds the standard value, measure the
current consumption for the circuit block alone. If the current consumption for the circuit block alone is
within the standard value range, a driving pulse may be generated. In that case, overhaul and clean the
movement parts, and then measure the current consumption for the whole movement again.
●Checking the accuracy
In order to check the accuracy, set the gate time of the quartz tester to 10 seconds, and measure the
accuracy with the crown at the original position.
Negative (-)
Positive (+)
Crystal unit
C-MOS-I

16
TECHNICAL GUIDE Cal. 6A32A
How to set the hour hand
1. Pull out the crown to the second click position and turn it
clockwise to advance the hour hand. Stop the hour hand at the
moment the date changes.
2. Set the hour hand pointing to the 12 o'clock position.
• Press it down to the surface of the hour wheel.
•Exercise care so as not to damage the arbors of the minute
wheel and fourth wheel.
3. Make sure that there is no friction between the hour hand and the
dial. Adjust the height of the hour hand if necessary.
Installation positions • Lubrication points • Remarks
Reassembling the exterior parts (1)
Set the battery.
1. Slide the battery in the direction shown by the arrow in the illustration (with the positive side facing up.)
2. Attach the clip to the battery holder.
* If the clip of the battery holder is attached to the main plate, take it off.
1. Check the two positions of the slots on the main
plate and the position of the calendar frame of the
dial. Place the dial temporarily.
2. Align the dial properly and firmly press it down to
set it.
Reassembling the exterior parts (2)
Set the dial.
Reassembling the exterior parts (3)
Set the hour hand, minute hand and second hand.
Positions of the slots on the main plate
(two positions)
Clip of the battery holder

17
TECHNICAL GUIDE Cal. 6A32A
How to set the minute hand
1. Temporarily set the minute hand pointing to the 12 o’clock
position.
2. Turn the crown counterclockwise at the second click position to
move the minute hand backward passing the 9 o’clock position,
and then turn the crown clockwise to move the minute hand
forward in order to check the timing when the date changes. In
a case that the date changes at a time out of the target time of
the date change, remove the minute hand and mount it again.
3. Firmly press the minute hand down to set it.
•Press the minute hand down to the surface of the center
wheel, but be careful not to press it excessively.
•Exercise care so as not to damage the arbor of the fourth
wheel.
• Target time of the date change: between 23:00 and 01:00
4. Make sure that there is no friction between the minute hand and
the hour hand, between the minute hand and the markers on the
dial, and between the minute hand and the calendar frame.
Adjust the height of the minute hand if necessary.
How to set the second hand
1. Align the second hand so as to position the tip at the center of the
width of the graduation marker, and slightly press it down to set
it temporarily.
2. Push the crown back to the original position and check the sweep
of the second hand.
•In a case that the second hand movement shows a large
deviation from the graduation, remove the second hand and
set it again.
3. After confirming that the second hand sweeps along with the
graduation, pull out the crown to the second click position to stop
the second hand movement, and then firmly press it down to set
it.
•Press the second hand down adequately without pushing it
insufficiently or excessively.
Hand installation check ups
1. Ensure that there is an adequate clearance between the dial and
the hour hand, between the hour hand and the minute hand, and
between the minute hand and the second hand. Also check that
the second hand is slightly curved upward. Make sure that there
is no friction. Adjust the position of the height of the hands if
necessary.

18
TECHNICAL GUIDE Cal. 6A32A
Method of operation Illustration Notes and tips
9 10 11
9 10 11
HOW TO INPUT THE CALENDAR DATA (1)
Set the inner frame. When fixing in the inner
frame, take care so as not to
touch the circuit pattern.
Reset the IC (Integrated circuit.)
•Keep the positive terminal in
contact with the AC pattern of
the circuit for 4 seconds or longer
to reset the IC.
*Make sure the crown is at the
original position.
Close the back lid. Make sure that the gasket is
not pinched or rolled.
Initial position adjustment for
the calendar (1)
(Set the second hand pointing to
the 12 o’clock position.)
1. Pull out the crown to the first
click position and hold down the
button for 2 seconds or longer.
*The second hand will rapidly turn
clockwise and stop and the date
dial will move back and forth,
and then stop.
*Keep the crown at the first click
position from this point onward.
2. After confirming that the second
hand and the date dial have been
stopped, turn the crown to set
the second hand pointing to the
12 o’clock position.
“Initial position of the second hand ”
*Make sure that the second hand
movement is interlocked with
the rotation of the crown: the
second hand moves forward by
turning the crown clockwise,
while it moves backward by
turning the crown counter-
clockwise.
Rotating the crown clockwise
will turn the second hand
clockwise.
Rotating the crown counter-
clockwise will turn the second
hand counterclockwise.
●In the following operations
in each mode, never rotate
the crown while the second
hand and the date dial are
moving, as this may cause
an IC malfunction.
*In a case that an IC
malfunction occurs, reset
the IC and follow the same
procedures again for
restoration.
*If the watch is left
unoperated in this mode, the
setting mode will be
automatically cancelled and
the watch will return to the
normal mode within 2 to 3
minutes.
1
2
3
4
AC pattern
Positive terminal

19
TECHNICAL GUIDE Cal. 6A32A
HOW TO INPUT THE CALENDAR DATA (2)
Method of operation Illustration Notes and tips
5
●Position of the date numeral
after adjustment
31 1 2
9 10 11
Initial position adjustment for
the calendar (2)
(Set the date dial to show the
numeral “1”.)
*Keep the crown at the first click
position.
1. Press the button once.
The second hand will stop
pointing to the 12 o’clock
position, and the date dial will
move back and forth, and then
stop.
2. After confirming that the date
dial has been stopped, turn the
crown clockwise rapidly until the
date dial starts a self-propelling
movement.
3. At the moment when the
numeral “1” appears in the
calendar frame, slowly turn the
crown counterclockwise to
cancel the self-propelling
movement of the date dial and
stop it.
4. And then slowly turn the crown
clockwise or counterclockwise
to align the numeral “1” in the
center of the calendar frame.
Rotating the crown clockwise
will move the date dial forward.
Rotating the crown counter-
clockwise will move the date
dial backward.
•Slowly turning the crown
will move the date dial
slowly.
•Rapidly turning the crown
continuously will trigger the
self-propelling movement
of the date dial.
*While the date dial is self-
propelling, slowly turning
the crown in the reverse
direction of the date dial’s
movement will cancel the
self-propelling movement
of the date dial.
*If the watch is left
unoperated in this mode,
the setting mode will be
automatically cancelled and
the watch will return to the
normal mode within 2 to 3
minutes.

20
TECHNICAL GUIDE Cal. 6A32A
HOW TO INPUT THE CALENDAR DATA (3)
Method of operation Illustration Notes and tips
Set the month.
*Keep the crown at the first click
position.
1. Press the button once.
*The second hand will stop
pointing to the 10 o’clock
position. The date dial will move
forward and stop when the
numeral “1” comes to the center
of the calendar frame.
2. After confirming that the date
dial has been stopped, turn the
crown clockwise rapidly until the
date dial starts a self-propelling
movement.
When it is July, set the
numeral to “7” in the center
of the calendar frame.
Rotating the crown clockwise
will move the date dial
forward.
Rotating the crown counter-
clockwise will move the date
dial backward.
•Slowly turning the crown
will move the date dial
slowly.
9 10 11
6 7 8
Rotating the crown clockwise
will move the date dial forward.
Rotating the crown counter-
clockwise will move the date
dial backward.
•Slowly turning the crown
will move the date dial
slowly.
•Rapidly turning the crown
continuously will trigger the
self-propelling movement
of the date dial.
*While the date dial is self-
propelling, slowly turning
the crown in the reverse
direction of the date dial’s
movement will cancel the
self-propelling movement
of the date dial.
*If the watch is left
unoperated in this mode,
the setting mode will be
automatically cancelled and
the watch will return to the
normal mode within 2 to 3
minutes.
When the date is the 10th,
set the numeral to “10” in
the center of the calendar
frame.
Set the date.
*Keep the crown at the first click
position.
1. Press the button once.
*The second hand will turn
counterclockwise and stop
pointing to the 9 o’clock position.
The date dial will move back
and forth, and then stop when
the numeral “1” comes to the
center of the calendar frame.
2. After confirming that the date
dial has been stopped, turn the
crown clockwise rapidly until the
date dial starts a self-propelling
movement.
3. At the moment when the date
numeral you wish to set appears
in the calendar frame, slowly
turn the crown counterclockwise
to cancel the self-propelling
movement of the date indictor
and stop it.
6
7