The Seiko F421-4009 is a watch model based on the F421 movement.
Parts List
| ES4N29SZ60 | crystal |
| 0Z2500B31 | case back gasket |
| DZ0038B01 | case back gasket |
The Seiko F421-4009 is a watch model based on the F421 movement.
| ES4N29SZ60 | crystal |
| 0Z2500B31 | case back gasket |
| DZ0038B01 | case back gasket |