List Of Screws - Seiko 4R57A Technical Manual

25 Oscillating weight with ball bearing
Parts code Marking
1509 193
Japan mark
1509 194
● List of screws
Parts No
0012 919
29 Ratchet wheel screw
0012 168
Yoke spring screw
52
0012 100
Barrel and train
36 wheel bridge screw
(×3)
Balance bridge
31
screw
*All parts code are subject to change without notice.
PARTS LIST
Name Parts No
0012 354
(×2)
0012 310
Name
Center wheel bridge
46
screw
Pallet bridge screw
33
(×2)
Lower plate for
42 barrel and train
wheel bridge screw
Automatic train
26
bridge screw (×2)
Auxiliary main plate
20
screw
Auxiliary train wheel
4
bridge screw (×4)
7/14
Cal.4R57A