The Seiko 8420-6949 is a watch model based on the 8420 movement.
Parts List
| RE0W685N00 | crystal |
| 25M12NA1 | crown |
| 25M12NS1 | crown |
| 0H2001N01 | case back gasket |
| EZ0035B0A | others - crown and stem gasket |
| RE0W685N00 | crystal |
| 25M12NA1 | crown |
| 25M12NS1 | crown |
| 0H2001N01 | case back gasket |
| EZ0035B0A | others - crown and stem gasket |
Caliber 8420
