The Seiko 5931-5440 is a watch model based on the 5931 movement.
Parts List
| ES2W15HN00 | crystal |
| 35M17N | crown |
| 0G255BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |
Caliber 5931
Seiko 5931-5440 Watch Guide
The Seiko 5931-5440 is a watch model based on the 5931 movement.
| ES2W15HN00 | crystal |
| 35M17N | crown |
| 0G255BAA1 | case back gasket |
| EB0055B01 | others - crown and stem gasket |