CRYSTAL X-
For Seiko 8420-6390
690401/HAM
Alternate: 7648/HAM 752
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Omega 16325 | OMEGA CASE - USES CALIBER 440 | |
| Seiko 6319-5250 | SEIKO CASE REFERENCE | |
| Seiko 7T62-X138 |
