The Seiko 8420-6920 is a watch model based on the 8420 movement.
Parts List
| SA8N88SN00 | crystal |
| 22N04NA1 | crown |
| 0G1700N01 | case back gasket |
| DZ0030B01 | case back gasket |
| BHA16 | band - leather band |
| 06V04CGH | others - hour hand |
| 0354817 | others - setting/winding stem |
| 82709360 | others - case ring |
| 84201970XG14 | others - dial |
| 84201970XS14 | others - dial |
| 8420692025 | others - case |
| A120AS | others - push pin |
| 06V04CGM | others - minute hand |
| 09V04CGM | others - minute hand |
Caliber 8420
