PARTS LIST
FEATURES
SEIKO Automatic Mechanical Cal. 6R15B is replacement caliber of Cal. 6R15A.
Construction of the B series are the same as A series, but using new parts.
Since the size of movement is same as A series, the complete movement can be assembled into the
watches which originally have the A series movement; however, as the parts are not convertible, please
use the appropriate parts for each caliber.
Parts Differences Between A series and B series
Parts Name / Cal. No.
6R15A
6R15B
Hands height
0241 010
0201 070
Standard
Standard
0012 919
15
CANNON PINION
0225 005
0225 330
0225 005
Special
20
RATCHET WHEEL SCREW
0012 080
29
BARREL AND TRAIN WHEEL BRIDGE
0285 050
0285 051
36
FOURTH WHEEL AND PINION
0241 010
0241 382
39
BARREL COMPLETE
Cal.6R15A/B
2/16
0112 379
0114 348
0201 267
43
CENTER WHEEL AND PINION
WITH CANNON PINION
0224 083
0224 086
0224 330
16
OSCILLATING WEIGHT
0509 264
0509 267
21
RATCHET WHEEL