Seiko 4R57A Technical Manual page 5

Type of oil
AO-3 (Moebius A)
0511 010
41
First reduction wheel
・Refer to page 8 for the oiling position
・Refer to page 10 for
Disassembling/Reassembling
40
0831 183
Pawl lever
39
0836 002
Reduction wheel holder
44 0144 245
Fourth wheel and pinion
*1
PARTS LIST
S-6
S-4
*1
5/14
Oil quantity mark
NORMAL QUANTITY
SUFFICIENT QUANTITY
36
0012 420
Barrel and train wheel bridge screw
37-1 Cap jeweled spring
37-2
Cap jewel
38
0363 184
Ratchet sliding wheel spring
・Refer to the page11 for assembling
37 0114 183
Barrel and train wheel bridge
・Refer to page 8 for the oiling position
43 0436 166
Lower plate for barrel and train
wheel bridge
42
0012 354
Lower plate for barrel and train
wheel bridge screw
45
0231 070
Third wheel and pinion
46
0012 354
Center wheel bridge screw
47
0122 164
Center wheel bridge
Cal.4R57A