Seiko 5T82A Quick start guide

PARTS CATALOGUE/TECHNICALGUIDE
Cal. 5T82A
[SPECIFICATIONS]
Cal. No.
Item
Movement
Movement
size
Time indication
Outside diameter
Casing diameter
Height
Driving system
Additional mechanism
Loss/gain
Regulation system
Measuring gate by quartz tester
Battery Battery No.
Voltage
Battery life
Jewels
(x 1.0)
Ø 27.0 mm
Ø 27.6 mm
3.3 mm
Main time: Hour, minute and small second hands (1 second)
Nil
Step motor
• Electronic circuit reset switch
• Train wheel setting device
• Date calendar
• Instant setting device for date calendar
• Battery life indicator (The small second hand moves at two-second
intervals.)
•System reset
Monthly rate at normal temperature range: less than 15 seconds
Use 10-second gate.
SR927W
Nil
1.55 V
Approx. 3 years
4 pcs.
5T82A
• WORLD TIME:
City hand (24 cities),
WORLD TIME hour hand,
WORLD TIME minute hand
• ALARM:
ALARM hour hand
ALARM minute hand
• WORLD TIME
24 cities
WORLD TIME hand position adjustment
• ALARM function
Single-time ALARM
(Movement intervals)
1/26

REMARKS ON REPAIRING CAL. 5T82A
2/26
2. WORLD TIME FUNCTION
The basic movement structures of Cal. 5T82A is similar to the previous Cal. 7T Series watches,
and the knowledge and technique you have gained in handling the previous Cal. 7T Series
watches will come in handy when you repair Cal. 5T82A.
When repairing, however, you are requested to have the full knowledge of the features character-
istic of these watches and strictly observe the repairing and checking instructions provided in this
guide so that the watches will be repaired correctly.
I. FEATURES
As Cal. 5T82A has new movement structures, the operating procedures for ALARM setting, time
setting, and ALARM hand position adjustment differ from those of the previous Cal. 7T Series
watches.
As a result of this structure change, the battery life of Cal. 5T82A has increased to 3 years as com-
pared with that of the previous Cal. 7T series watches.
•The ALARM sounds only once at a designated time within the coming 12 hours and it is
automatically disengaged.
•Pushing the crown back into the normal position after setting the ALARM will prevent
the set ALARM time from changing by an accidental pressing of the button.
1. ALARM FUNCTION
• Apart from the main time, the time in the city selected by the city hand is displayed with
the designated WORLD TIME hands.
•The time in 24 cities is displayed in the 24-hour indication.
 ● Button operation (Crown position: Original position)
WORLD TIME city selection (turn clockwise)
WORLD TIME city selection (turn counterclockwise)
City hand
WORLD TIME minute hand
Button A
WORLD TIME hour hand
Crown
Button B
ALARM minute handALARM hour hand
Small second hand
Cal. 5T82A
WORLD TIME
3. SYSTEM RESET
When an abnormal display appears, reset the built-in integrated circuit. The watch will resume
its normal operation.
 ● Button operation (Crown position: Second click)
Press and hold buttons A and B at the same time for longer than 2 seconds.

REMARKS ON REPAIRING CAL. 5T82A
3/26
After installing the battery, reset the built-in integrated circuit, and then set the time and adjust
the ALARM and WORLD TIME hand positions following the procedure below.
II. NECESSARY PROCEDURE AFTER BATTERY CHANGE
Pull out to the 2nd click when the small second hand is at the
12 o’ clock position.
Turn to set the main time.
* Check that AM/PM is correctly set.
Pull out the crown to the 2nd click.
Press and hold both buttons A and B at the same time for longer than 2 seconds.
Push back in to the normal position in accordance with a time signal.
Press Button B to set the ALARM hands to the current time.
Press Button B to set the city hand to point to the city of
which you know the current time.
Press Button A for longer than 2 seconds.
The WORLD TIME hand turns a full circle.
Press Button B to set the WORLD TIME hands to the time
of the city you have selected by the city hand.
Press Button A for longer than 2 seconds.
The city hand turns a full circle.
Button B
Crown
Crown
Systen Reset
Crown
Note*
Note* Pressing Button A for longer than 2 seconds here will allow you to resume the procedure again
as indicated by the arrow if neccessary.
Button A
Button B
Button A
Button B

Cal. 5T82A
PARTS CATALOGUE
4/26
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING.”
0027 973
Pin for date dial guard
1
0808 580
Date dial guard
2
0878 526
Date dial
3
0962 580
Intermediate wheel for calendar correction
4
0737 580
Date corrector setting wheel
5
0278 581
Hour wheel for WORLD TIME
24-hour indication
7
0271 588
Hour wheel
9
0802 580
Date driving wheel
6
0271 583
Hour wheel for alarm
8
Disassembling procedures Figs. : 1 59
Reassembling procedures Figs. : 59 1
Remarks on removing the winding stem
To remove the winding stem when taking
out the movement from the case or while
disassembling the par ts 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.
* For the type of oil and quantity of lubrication, refer to the following TECHNICAL GUIDE section.

PARTS CATALOGUE Cal. 5T82A
Lubricating of some parts is shown in "II. REMARKS ON DISASSEMBLING AND REASSEMBLING."
4259 509
Anti magnetic shield plate B
10
3013 250 (SR927W)
Battery
11
0022 230
Battery clamp screw
12
4225 547
Battery clamp
13
0022 459
Circuit block cover screw
14
4457 980
Circuit block cover
15
4224 514
Conducting plate
16
0396 580
Friction spring for second counting
17
4000 619
Circuit block
18
4589 801
Piezoelecric element
*The piezoelectric element is
adhered to the case back.
0022 459
Circuit block cover screw
( 3 pcs.)
0022 230
Battery clamp screw (3 pcs.)
5/26

Cal. 5T82A
PARTS CATALOGUE
Lubricating of some parts is shown in "II. REMARKS ON DISASSEMBLING AND REASSEMBLING."
4246 700
Buzzer lead terminal
19
0240 580
Small second wheel
23
0701 580
Fifth wheel & pinion
26
0950 590
Intermediate wheel for WORLD TIME
28
0885 594
First intermediate wheel for city setting
30
0270 582
Center minute wheel for WORLD TIME
32
4283 581
Spacer for center wheel & pinion
34
0885 595
Second intermediate wheel for city setting
35
4146 710
Step rotor
37
4146 710
WORLD TIME rotor
39
4146 710
Rotor for city setting
40
4270 710
Battery connection (–)
20
0027 974
Pin for train wheel bridge
21
0125 509
Train wheel bridge
22
0888 582
City setting wheel
24
0241 583
Fourth wheel & pinion
25
0231 580
Third wheel & pinion
27
0950 590
Intermediate wheel for ALARM
29
0270 582
Center minute wheel for ALARM
31
0261 580
Minute wheel
33
4450 703
Switch lever A
36
4146 710
ALARM rotor
38
0383 592
Setting lever
41
0384 582
Yoke
42
0351 583
Winding stem
43
6/26

PARTS CATALOGUE Cal. 5T82A
7/26
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING.”
0281 580
Setting wheel
44
0264 580
Minute wheel for WORLD TIME
24-hour indication
45
0261 582
Minute wheel for ALARM
46
0282 585
Clutch wheel
47
0221 583
Center wheel and pinion
48
4002 700
Coil block (A)
49
0391 591
Train wheel setting lever
51
4239 710
Rotor stator
52
4002 711
Coil block for ALARM
55
4239 712
Rotor stator for ALARM
57
4450 701
Switch lever B
58
4002 700
Coil block for city setting
50
4239 711
Rotor stator for city setting
53
4002 711
Coil block for WORLD TIME
54
4239 713
Rotor stator for WORLD TIME
56
0100 559
Main plate
59

Cal. 5T82A
PARTS CATALOGUE
8/26
The correct parts for the followings are determined based on the design of cases. Check the case
number, and refer to "Watch Parts Catalogue CD-ROM" to choose corresponding parts.
 ✳ Holding ring for dial (0866 651)
3 Date dial (0878 526)
43 Winding stem (0351 583)
• Point of distinction
Refer to the illustrations below to see the difference between those two types of pins.
1 Pin for date dial guard
0027 973
22 Pin for train wheel bridge
0027 974

Cal. 5T82A T ECHNICA L GUIDE
9/26
No.

PROCESS

ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC.


Assembling the
switching unit and
wheels

59Set the main plate.


Lubricate the lower
pivots of the rotors.



Lubricate the
contact area
between the small
second wheel and
main plate.


Lubricate the point
of engagement of
the switch lever B.

Lubricate the axis of
the switch lever B.










<59> Set the main plate.
Lubricate the contact area between the small
second wheel and main plate: Moebius F or AO-2
<Amount of lubricant
Refer to the illustrations below to see the right
amount of lubricant.
(a) (b) (c)
(a) Overlubricated
(b) Appropriately lubricated
(c) Underlubricated
Appropriate amount(Stone)
Appropriate amount(Convex part)
Appropriate amountS-6
Lubricate the point of engagement of
the switch lever B: S-6
Lubricate the axis of the switch lever B: Moebius V or AO-3
Lubricate the lower pivots of the rotors: Moebius F or AO-2

Cal. 5T82A T ECHNICA L GUIDE
10/26
NO.

PROCESS

ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC.

58 Set the switch lever B.

56 Set the rotor stator for
WORLD TIME

Lubricate the axis of the
setting wheel.

57 Set the rotor stator for
ALARM.

55, 54
Set the coil blocks for
ALARM and WORLD
TIME.

53, 52
Set the rotor stator for
city setting, and rotor
stator.

51 Set the train wheel
setting lever.

50, 49
Set the coil block for
city setting and the coil
block (A).

56
Set the rotor stator for
WORLD TIME.
53, 52
Rotor stator for city setting





Discrimination number
Set the rotor stator.

Discrimination number0


50, 49Set the coil block for city setting and the coil block (A).
Coil resistance: 2.10 K2.70 K
58
Set the switch lever B.
55, 54
Set the coil blocks for ALARM and WORLD TIME.
Coil resistance: 1.80 K2.40 K
57
Set the rotor stator for ALARM.
Lubricate the axis of the setting
wheel: Moebius V or AO-3
51
Set the train wheel setting lever.