The Seiko 7439-5090 is a watch model based on the 7439 movement.
Parts List
| ESPN99JN00 | crystal |
| 30N97DA1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0H2450B01 | case back gasket |
Caliber 7439
Seiko 7439-5090 Watch Guide
The Seiko 7439-5090 is a watch model based on the 7439 movement.
| ESPN99JN00 | crystal |
| 30N97DA1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0H2450B01 | case back gasket |