The Seiko 8420-6959 is a watch model based on the 8420 movement.
Parts List
| SA8N94SN00 | crystal |
| 25M24NA1 | crown |
| 25M24NS1 | crown |
| 0G1500N01 | case back gasket |
| 0Z0034B01 | case back gasket - crown and stem gasket |
Caliber 8420
Seiko 8420-6959 Watch Guide
The Seiko 8420-6959 is a watch model based on the 8420 movement.
| SA8N94SN00 | crystal |
| 25M24NA1 | crown |
| 25M24NS1 | crown |
| 0G1500N01 | case back gasket |
| 0Z0034B01 | case back gasket - crown and stem gasket |