The Seiko 7431-5320 is a watch model based on the 7431 movement.
Parts List
| REAN55SZ10 | crystal |
| 35NS3DA5 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0F205NA11 | case back gasket |
Caliber 7431
Seiko 7431-5320 Watch Guide
The Seiko 7431-5320 is a watch model based on the 7431 movement.
| REAN55SZ10 | crystal |
| 35NS3DA5 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0F205NA11 | case back gasket |