The Seiko 7439-5040 is a watch model based on the 7439 movement.
Parts List
| ES5W35HN00 | crystal |
| 35M39NA1 | crown |
| 35M39NS1 | crown |
| 0G240BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 7439
Seiko 7439-5040 Watch Guide
The Seiko 7439-5040 is a watch model based on the 7439 movement.
| ES5W35HN00 | crystal |
| 35M39NA1 | crown |
| 35M39NS1 | crown |
| 0G240BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |