List Of Screw; Date Dial; How To Find Correct Parts, If Not Determined By 4 Digit Caliber Number - Seiko 8R48A Technical Manual

PARTS CATALOGUE

List of screw

●
Parts code Parts name
0012 092
Second counting wheel
15
spring screw
Chronograph bridge
17
screw (x5)
Operation lever spring
33
screw
Operation cam jumper
36
screw
Chronograph coupling
38
lever spring screw
Main plate screw (x4)
58
0012 919
67 Ratchet wheel screw

Date dial

9
Parts code
0878 109
0878 108
*All parts code are subject to change without notice.
How to find the correct parts, if not determined by 4 digit caliber number
●
Following parts are determined based on the design of watches, such as hands height, dial color,
and design of cases. Please refer to the SEIKO WATCH PARTS CATALOGUE in order to choose
corresponding parts.
Oscillating weight with ball bearing
1
DATE DISK
9
WINDING STEM
90
*For screw down crown models, the stem is assembled to the crown and is not available separately.
18 Chronograph bridge
24 Minute counting wheel
25 Hour counting wheel
44 Seconds wheel
60-1 Balance complete without stud
CAL Hand Height
3 (LONG)
8R48
4 (SPECIAL)
8R49 3 (LONG)
Parts code
0012 354
0012 201
Position of date
Position of crown
3H
3H
0878 ***
0351200
18 Chronograph
bridge
0190192
0190193
0190192
Parts name
Unit intermediate
49
spacer screw
Pallet bridge screw
61
(x2)
Automatic train
64
bridge screw (x2)
Lower plate for barrel
75
and train wheel bridge
screw
Center wheel bridge
79
screw
45 Operatig cam screw
Color of numbers
frame
3H Black
3H White
0509 *** • 1509 ***
0190 ***
0902 ***
0902 ***
0240 ***
0310 ***
19 Minute counting wheel
20 Hour counting wheel
0902184
0902191
0902184
10/24
Cal. 8R48A/8R49A
Parts code Parts name
0012 420
Balance bridge
59
screw
Barrel and train
69
wheel bridge
screw (x3)
0012 168
Yoke spring screw
85
(x2)
0016 709
Hour wheel guard
2
screw (x3)
Date indicator
7
maintaining plate
screw
Color of background
Silver
(Plain metal)
Black
60-1 Balance
44 Seconds
complete without
wheel
stud
0240178
0310055
0240191
0240178 0310277