The Seiko 8420-0280 is a watch model based on the 8420 movement.
Parts List
| 130N22SN01 | crystal |
| 26M08EE1 | crown |
| 0G1501B01 | case back gasket |
| 86581080 | crystal gasket |
| WI167 | others - other band |
Caliber 8420
Seiko 8420-0280 Watch Guide
The Seiko 8420-0280 is a watch model based on the 8420 movement.
| 130N22SN01 | crystal |
| 26M08EE1 | crown |
| 0G1501B01 | case back gasket |
| 86581080 | crystal gasket |
| WI167 | others - other band |