The Seiko 8420-6229 is a watch model based on the 8420 movement.
Parts List
| RE3N28SN00 | crystal |
| 22N04NA1 | crown |
| 25N04NA3 | crown |
| 25N04NX3 | crown |
| DZ0030B01 | case back gasket |
| 0G1900N01 | case back gasket - case back gasket |
Caliber 8420
Seiko 8420-6229 Watch Guide