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Seiko 7S25B Technical Manual & Parts Catalogue page 3

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PARTS CATALOGUE
ea First reduction wheel
05 006
es Pawl lever
083 004
e; Reduction wheel holder
0836 002
Diashock
w; Balance cock screw
002 420
wa Balance cock
07 97
ws Balance complete
without stud
030 97
wd Pallet cock screw
002 354
wf Pallet cock
06 300
wg Pallet fork
030 009
For parts qj , ql , wl , e; , and ea , refer to "REMARKS ON DISASSEMBLING AND REASSEMBLING" on page 6.
For parts w; , wa , and ws refer to "HOW TO REMOVE AND INSTALL THE BALANCE STAFF" on page 7.
For parts rj , refer to " PARTS USED DIFFER DEPENDING ON THE CASING MODEL" on page 5.
Diafix
qj Oscillating weight (with
qk Second reduction wheel and
ql Second reduction wheel and pinion
wh Ratchet wheel screw
wj Ratchet wheel
wk Barrel and train wheel bridge
wl Barrel and train wheel bridge
ed Click
038 004
ef Fourth wheel & pinion
eg Barrel complete (with mainspring)
020 024
eh Third wheel & pinion
023 070 (7S25B)
023 007 (7S35B, 7S55B)
ej Escape wheel & pinion
ek Center wheel bridge screw
002 354
el Center wheel bridge
022 300
r; Center wheel & pinion (with
cannon pinion) 0224 078
ra Yoke spring screw
002 68
rs Yoke spring
0388 070
rd Yoke
0384 070
rf Setting lever
0383 070
rg Clutch wheel
0282 070
rh Intermediate wheel for calendar
rj Winding stem
035 ***
3/8
Cal. 7S25B, 7S35B, 7S55B
ball bearing)
0509 88(7S25B)
0509 96(7S35B)
0509 98(7S55B)
pinion screw 002 539
054 002
002 99
0285 03
screw
002 420
02 300
024 00
025 03
corrector
0962 008

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This manual is also suitable for:

7s35b7s55b