U & L BALANCE HOLE JL IN SET
For Seiko 5Y39-1010
X/10521
Alternate: 4021/PUW 512
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Favre Leuba 271 | WITHOUT SECOND DBL, BBL | 11.5 |
| Seiko 2P20-5D00 | SEIKO CASE REFERENCE | |
| Seiko V811-5530 | PULSAR CASE |
