Seiko 5J32A User Manual

PARTS CATALOGUE / TECHNICAL GUIDE

Cal. 5J32A

PARTS CATALOGUE / TECHNICAL GUIDE (p. 1 – 22)

[SPECIFICATIONS]

Cal. No.

Item

Movement

Movement
size

Time indication 3 hands Hour and minute hands move at 5-second intervals.

Driving system • Step motor (Load compensated driving pulse type, 2 pieces)

Additional mechanism • Automatic generating system

Outside diameter ø26.4 mm

Casing diameter ø25.6 mm

Height 4.15 mm

• Energy depletion forewarning function

• Overcharge prevention function

•Electronic circuit reset switch

• Train wheel setting device

•Date calendar

• Instant setting device for date calendar

• Automatic power save function

• Manual power save function

• Time relay function

()

Second hand moves at 1-second intervals.

5J32A

(x 1.0)

Loss/gain Monthly rate at normal temperature range: less than 15 seconds

Regulation system

Measuring gate by quartz tester Use 10-second gate.

Power
supply

Electricity Storage
Unit (E.S. Unit)

Operating voltage range 0.45 V ~ 2.5 V

Duration of charge

Jewels 13 jewels

Nil

Automatic generating systemPower generator

Titanium lithium ion rechargeable battery

Validity of time relay function : Approx. 4 years (Full charge)

1

REMARKS ON REPAIRING CAL. 5J32A

Cal. 5J32A is an epoch-making model of SEIKO’s revolutionary KINETIC watches, just like 5J21A/5J22A. It
is equipped with innovative functions that have introduced a completely new concept into the KINETIC
technology SEIKO has cultivated in its long years of precision product manufacturing. In repairing Cal.
5J32A, therefore, you are requested to have the full knowledge of its functions and strictly observe the
repairing and checking instructions provided in this guide so that the watch will be repaired securely.

FEATURES OF CAL. 5J32A

Cal. 5J32A features the power save function that automatically stops the hands from moving if the watch is
left untouched for a certain period of time. When you decide to use it again, swinging the watch several times
will activate the time relay function, which starts the hands moving quickly to indicate the correct time and
resume the normal operation. In this way, Cal. 5J32A conserves the stored electrical energy by stopping the
hands while it is not in use, and, at the same time, it completely eliminates the cumbersome time setting
procedure when it is used again.

Thanks to this innovative mechanism, the duration of charge has increased enormously.

1. POWER SAVE FUNCTION

· While the watch is not in use, the hands stop automatically to minimize the electrical energy
consumed. This is called “the power save function”. Though the hands stop, the built-in IC continues
to compute the time, keeping the watch ready for the next use.

· The power save function can be activated either automatically or manually.

The automatic power save function

· If the watch is left untouched for approximately 72 hours, the power save function is automatically
activated.

The manual power save function

· The power save function can be activated whenever you decide no to use the watch for a long time.

· By pulling out the crown to the first click and pushing it in to the normal position within one second,

the power save function is activated manually.

Notes:

* Do not pull out the crown to the second click while the power save function is in operation. Otherwise,

it is turned off, and the time retained inside the watch will be erased.

* While the second hand is moving at two-second intervals, the power save function cannot be activated

manually.

2. TIME RELAY FUNCTION

· While the power saving function is working, the built-in IC continues to compute the time though the
hands stop. As the watch detects a certain amount of electricity generated by swinging it, the hands
are automatically adjusted to the time retained inside the watch, resuming the normal operation. This
is called the “time relay function”. As it is activated, the hour and minute hands are adjusted first, then,
followed by the second hand.

· By only swinging the watch for 2 to 3 seconds, the time relay function will be activated.

Notes:

* The time relay function will not adjust the date. If you find the date incorrect after it is activated, it is

necessary to adjust the date manually to the current date.

* The accuracy of the time computation by the built-in IC is equivalent to that of conventional quartz

watches. If the power save function has been in operation for a long term before the time relay function
is activated, the time indicated by the hands may include a certain amount of time loss or gain that has
accumulated during that time.

3. DURATION OF CHARGE

· The duration of charge varies depending on the power reserve stored inside the watch. If the watch
is fully charged, the power save function will keep it operating for about four years.

Note: If the power reserve is depleted completely while the power save function is in operation, the time

relay function may not be activated by swinging the watch. Instead, the second hand starts moving
at two-second intervals.

2

PARTS CATALOGUE

Cal. 5J32A

Disassembling procedures Figs. : 1 61

Reassembling procedures Figs. : 61 1

➔
➔

Lubricating: Types of oil Oil quantity

Moebius A Normal quantity

Moebius F Liberal quantity

SEIKO Watch Oil S-6

Remarks on removing the winding stem

To remove the winding stem when taking
out the movement from the case or while
disassembling the parts during repair
work, be sure to pull out the crown to the
first click, and then, remove the winding
stem while pushing the setting lever.

Note: If the winding stem is removed with

the crown at the normal position, it
may not be put back in place.

1 Hour, minute and

second hands

2 Dial

3 0012 354

Date dial guard screw

4 0353 558

Hour wheel guard spring

5 0808 557

Date dial guard

0012 354

• Date dial guard screw (2 pcs.)

• Rechargeable battery clamp screw
(2 pcs.)

•Circuit block cover A screw (4 pcs.)

• Circuit block cover C screw (2 pcs.)

• Circuit block cover B screw (2 pcs.)

• Train wheel bridge screw (2 pcs.)

• Setting lever spring screw (1 pc.)

0022 490

• Oscillating weight screw (1 pc.)

6 0737 557

Day-date corrector wheel

7 0962 558

Second intermediate wheel
for calendar corrector

8 Date dial

9 0802 557

Date driving wheel

10 0817 558

Intermediate date driving
wheel

11 0817 557

Intermediate hour wheel

12 0353 557

Date driving wheel spring

13 0271 558

Hour wheel

Please see the remarks on the following pages.

➡

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

3

PARTS CATALOGUE

Cal. 5J32A

14 0022 490

Oscillating weight screw

15 0500 537

Oscillating weight

16 0012 354

Rechargeable battery clamp screw

17 4225 522

Rechargeable battery clamp

18 4216 524

Insulator for rechargeable battery

19 3023 24X

Rechargeable battery unit

20 0012 354

Circuit block cover A screw

21 4457 804

Circuit block cover A

22 4457 774

Circuit block cover D

23 0012 354

Circuit block cover C screw

24 4457 773

Circuit block cover C

25 0012 354

Circuit block cover B screw

26 4457 772

Circuit block cover B

27 0198 557

Oscillating weight bridge

28 4000 516

Circuit block

Please see the remarks on the following pages.

➡

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

4

PARTS CATALOGUE

Cal. 5J32A

29 1002 557

Intermediate wheel
for generating rotor

30 0012 354

Train wheel bridge screw

31 0125 556

Train wheel bridge

32 4146 522

Generating rotor

33 4002 525

Generating coil block

34 0240 556

Second wheel and pinion

35 0317 557

Intermediate second wheel

36 0241 556

Fourth wheel and pinion

37 0231 556

Third wheel and pinion

38 4146 521

Second rotor

39 4146 523

Hour and minute rotor

40 0281 552

Setting wheel

41 0766 553

Intermediate minute wheel

42 0261 553

Minute wheel and pinion

43 4283 557

Spacer for center wheel
and pinion

44 0221 556

Center wheel and pinion

45 4002 524

Second coil block

46 4002 523

Hour and minute coil block

47 4271 522

Rechargeable battery
connection (+)

Please see the remarks on the following pages.

➡

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

5

PARTS CATALOGUE

Cal. 5J32A

48 0012 354

Setting lever spring screw

49 0388 557

Setting lever spring

50 0383 557

Setting lever

51 0384 557

Yoke

52 0391 557

Train wheel setting lever

53 4239 524

Generating stator

54 4239 523

Second stator

55 4239 522

Hour and minute stator

56 Winding stem

57 0282 523

Clutch wheel

58 0962 557

First intermediate wheel for
calendar corrector

59 0027 369

Power saving switch lead pin

60 4408 524

Circuit block spacer

61 0100 556

Main plate

Please see the remarks on the following pages.

➡

Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.

6

PARTS CATALOGUE

Identification of circuit block

In order to distinguish 5J32 circuit block from 5J21/5J22 circuit blocks, refer to "Identification of 5J
series circuit blocks" on page 22.

Remarks:

8 Date dial

Cal. 5J32A

Part code

0878 942

0878 943

The type of date dial is determined based on the design of cases. (The table above does not cover all
the date dial available.)
Check the case number and refer to “SEIKO Casing Parts Catalogue” or "Watch Parts Catalogue CD­ROM" to choose a corresponding date dial.

56 Winding stem 0351 557

The type of winding stem is determined based on the design of cases.
Check the case number and refer to “SEIKO Casing Parts Catalogue” or "Watch Parts Catalogue CD-

ROM" to choose a corresponding winding stem.

Position of crown

3 o’clock

3 o’clock

Position of

calendar frame

3 o’clock

Color of figure

White Black

Black White3 o’clock

Color of

background

TECHNICAL GUIDE

• The explanation here is only for the particular points of Cal. 5J32A.

• For the repairing, checking and measuring procedures, refer to the “TECHNICAL GUIDE, GENERAL

INSTRUCTIONS”.

Cal. 5J32A

I. STRUCTURE OF THE CIRCUIT BLOCK

Automatic generating

input terminal

Input terminal (+)

Input terminal (–)

Hour and minute coil output terminal

C-MOS-IC

Crystal unit

Second coil output terminal

Hour and minute coil
detection terminal

7

TECHNICAL GUIDE

II. REMARKS ON DISASSEMBLING AND REASSEMBLING

For disassembling and reassembling, be sure to use the universal movement holder.

1 Hands

In case of conventional quartz movements, the hands should be installed immediately after the date
changes by turning the crown. Cal. 5J32A uses a new calendar mechanism that changes without
perceptible clicks, and therefore, the procedure below should be followed to install the hands.

• How to install

1. Pull out the crown to the second click, and
turn it counterclockwise.

2. Check if the date numeral moves in the
calendar frame. When it starts to move,
turn the crown slowly, and stop turning it
when the numeral stops moving.

3. Install the hour hand exactly at the 12
o’clock position.

4. Install the minute and second hands in the
same manner as you would do for a
conventional quartz movement.

Cal. 5J32A

4 Hour wheel guard spring

• Setting position

Refer to the illustration at right.

Note: Handle the hour wheel guard spring

carefully lest its spring portion should
be deformed.

5 Date dial guard

· “A” portion in the illustration at right has
elasticity and is made tight in order to be set to
the guide tube. Make sure that “A” portion is
set securely in position.

· Hook the spring portion “B” of the date dial
guard to the tube as shown in the illustration
at right.

Hour wheel

guard spring

Guide tube

“A” portion

Tube

Spring portion “B”

8