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Seiko 4S77A Parts Catalogue /Technical Manual page 3

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PARTS CATALOGUE
5
0509 108
Oscillating weight with
ball bearing
6
0012 744
Screw for framework for
automatic device (2 pcs.)
7
Framework for automatic device
56
0012 284
Screw for barrel and train
wheel bridge (3 pcs.)
57
0112 284
Barrel and train wheel bridge
8
0531 003
Differential wheel and pinion
9
0511 004
First reduction wheel and pinion
Diashock
51
0012 284
Balance cock
screw
52
0171 076
Balance
cock
0310 034
Balance complete
with stud
53
0012 285
Pallet cock screw
54
0161 030
Pallet cock
55
0301 012
Jewelled pallet
fork and staff
0429 001
(Support for second reduction
wheel and pinion)
3
0013 975
(Dial leg pin)*
0514 003
(Second reduction wheel
and pinion)*
* The dial leg pin and second reduction wheel
and pinion cannot be disassembled as they
are fixed to the main plate.
Please see the remarks on the following pages.
Moebius A
Cal. 4S77A
Diafix
59
0012 673
Screw for friction spring for
second wheel pinion
60
0396 003
Friction spring for second
wheel pinion
58
0241 016
Fourth wheel and pinion
61
Second wheel pinion
62
0231 012
Third wheel and pinion
64
0012 285
Center wheel bridge screw
(2 pcs.)
65
0122 030
Center wheel bridge
66
0851 002
Second reverser idler
67
0361 002
Train wheel setting lever spring
68
0391 006
Train wheel setting lever
69
0251 018
Escape wheel and pinion
63
0201 275
Complete barrel with mainspring
70
Center wheel and pinion
with cannon pinion
0390 005
Setting lever axle
44
0285 023
Rachet wheel
43
0012 513
Rachet wheel screw
(left-hand thread)
3

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