Seiko KINETIC 7L22A Installer manual

1
PARTS CATALOGUE /TECHNICAL GUIDE
Cal. 7L22A
[SPECIFICATIONS]
Cal. No.
Item
Movement
7L22A
(x 1.0)
Movement
size
ø32.0 mm
ø30.0 mm
Time indication
Main time : Hour, minute and small second hands ( 1second)
Outside diameter
Casing diameter
Height 6.4 mm
Driving system
Additional mechanism
Loss/gain Monthly rate within normal temperature range: less than 15 seconds
Regulation system Nil
Measuring gate by quartz tester 10-second gate
Titaniume lithium ion rechargeable battery
Power
Supply
Automatic generating system
Operating voltage range 0.45 ~ 2.5 V
Duration of operation From full charge to stoppage : Approximately 5 months
Jewels 8 jewels
Step motor, 2 pieces (Load compensated driving pulse type)
•Electronic circuit reset switch
•Train wheel setting device
•Date calendar
•Instant setting device for day
calendar
Power generator
KINETIC E.S.U
Stopwatch : Stopwatch minute and 1/5 second hands (0.2 second)
( Movement intervals)
•Automatic generating system
•Energy depletion forewarning
function
•Overcharge prevention
function
•Stopwatch function
45 minutes measurement in 1/5 second increments
Accumulated elapsed time measurement
Heartcam fly-back Reset

2
Before starting repairs, read this manual carefully to understand the features of this watch and strictly
observe the instructions regarding how to perform repairs and checks in order to ensure appropriate
work is carried out.
Features of Cal. 7L22A
The Cal. 7L22A is a fully-fledged chronograph featuring a Kinetic Automatic Generating System.
5M6 series parts are used for the Automatic Generating System and 7N series parts are used for the
wheels and motors.
1. Stopwatch functions
◆The stopwatch is designed to time up to 45 minutes in 1/5 second increments.
◆The measured time is indicated by two stopwatch hands.
◆After timing for 45 minutes, it continues timing up until 48 minutes before automatically stopping.
◆The stopwatch can be reset even while it is currently timing.
◆Stopwatch Operation:
Button A : Start/ Stop
Button B : Reset
BEFORE STARTING REPAIR WORK ON 7L22A
◆Heartcam Chronograph Reset:
The two stopwatch hands are instantaneously reset to the zero position.
◆Measuring methods:
Standard measurement
Accumulated elapsed time measurement
2. Kinetic features
◆The watch will keep operating for approximately 5 months when fully charged under the condition
that the stopwatch is used for no longer than for 45 minutes per day.
◆Energy Depletion Forewarning Function
When energy is running low, the small second hand will start moving in two-second intervals to
indicate recharging is required. If the watch is not recharged at this time, it will run down within
approximately 12 hours after the initial forewarning.
◆Gently swing the stopped watch from side to side at least five hundred times until it returns to its
normal one-second intervals from the two-second intervals.
A
B

PARTS CATALOGUE Cal. 7L22A
3
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Disassembling procedures Figs. :
Reassembling procedures Figs. :
Lubricating : Types of oil Oil quantity
Moebius A
Moebius F
SEIKO Watch Oil S-6
Normal quantity
Large quantity
When removing the movement from the case or releasing the setting stem during repairs, make sure
that the crown is pushed in to the zero position (its original position) and then gently push down on the
setting lever to remove the movement from the setting stem.
Remarks
To comply with the new structure of the Cal.7L22, an exclusive movement holder should always be used
for dissembly and reassembly.
1
1
85
85
Oscillating weight
0500 700
(0500 702 for special model)
Stopwatch 1/5 second
hand
Stopwatch minute hand
Small second hand
Minute hand
Hour hand
Dial
Oscillating weight screw
0022 490
Oscillating weight wheel
1002 662
Case back
Case back gasket
Case
1
3
4
5
6
7
8
9
2

PARTS CATALOGUE Cal. 7L22A
4
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Pin for date dial guard
0027 973 (2 pcs.)
Date dial guard
0808 508
Date corrector setting wheel
0737 500
Date driving wheel
0802 502
Dial washer
0491 735
Date jumper
0810 701
Date dial
(0878 A38)
Hour wheel
0271 514
Anti magnetic shield plate
4259 504
Date dial guide spacer
4408 533
2nd intermediate wheel
for calendar correction
0962 891
10
11
12
13
14
15
17
18
19
20
16

PARTS CATALOGUE Cal. 7L22A
5
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Rechargeable battery clamp screw
0022 247 (2 pcs.)
Rechargeable battery clamp
4225 529
Insulator for rechargeable battery
4216 519
Rechargeable battery unit
3023 24T
Oscillating weight bridge screw
0022 247 (2pcs.)
Oscillating weight bridge
0198 501
Intermediate wheel for generating rotor
1002 660
Generating rotor
4146 518
Hammer guide spacer
4283 503
21
22
23
24
25
26
27
28
29

PARTS CATALOGUE Cal. 7L22A
6
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Hammer guard screw
0022 247
Hammer guard
0839 503
Generating lead board
4200 515
Generating lead contact spring
4281 505 (4 pcs.)
Generating coil block
4002 514
Generating stator
4239 519
Transmission lever
0733 700
Hammer
0585 700
Operating lever
0571 700
Transmission lever for hammer
0587 700
Rechargeable battery
connection (+) spacer
4408 531
Rechargeable battery
connection (+)
4271 515
33
36
37
30
31
32
34
35
38
39
40
41

PARTS CATALOGUE Cal. 7L22A
7
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Circuit block plate
4050 500
Chronograph wheel setting lever
0391 502
Coil block guard
0839 501
Circuit block
4000 563
Minute counting wheel
0902 700
Second counting wheel
0888 700
Second counting wheel washer
0491 501
Coil block guard screw
0022 247 (2pcs.)
Minute counting wheel washer
0491 501
48
50
44
42
45
46
43
47
49

PARTS CATALOGUE Cal. 7L22A
8
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Pin for train wheel bridge
0027 974
Train wheel bridge
0125 504
3rd intermediate wheel
for second-counting
0701 904
2nd intermediate wheel
for second-counting
0817 505
1st intermediate wheel
for second-counting
0885 701
2nd intermediate wheel
for minute-counting
0231 904
1st intermediate wheel
for minute-counting
0885 700
Rotor for chronograph
4146 886
51
52
53
54
55
56
57
58

PARTS CATALOGUE Cal. 7L22A
9
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
Rotor
4146 886
Train wheel setting lever
0391 501
Third wheel & pinion
0231 904
Small second wheel
0240 500
3rd intermediate wheel
for fourth wheel & pinion
0817 505
2nd intermediate wheel
for fourth wheel & pinion
0817 505
1st intermediate wheel
for fourth wheel & pinion
0817 505
Fifth wheel & pinion
0701 904
59
60
61
62
63
64
65
66

PARTS CATALOGUE Cal. 7L22A
10
Please see the remarks on the following pages.
Lubricating of some parts is shown in “II. REMARKS ON DISASSEMBLING AND REASSEMBLING”.
3rd intermediate wheel for minute wheel
0766 501
Setting wheel
0281 904
2nd intermediate wheel for minute wheel
0766 501
1st intermediate wheel for minute wheel
0766 501
Minute wheel
0261 904
Center wheel & pinion
0221 563
68
69
70
71
72
67