The Seiko 7431-5340 is a watch model based on the 7431 movement.
Parts List
| ESWN35JN00 | crystal |
| 30N39NA1 | crown |
| 0D260BA11 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Caliber 7431
Seiko 7431-5340 Watch Guide
The Seiko 7431-5340 is a watch model based on the 7431 movement.
| ESWN35JN00 | crystal |
| 30N39NA1 | crown |
| 0D260BA11 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |