The Seiko 8420-6710 is a watch model based on the 8420 movement.
Parts List
| RE4N34SN00 | crystal - crystal |
| 25M02NA4 | crown - crown |
| 0H1860N01 | case back gasket - case back gasket |
| DK29B | band - band |
| 04R27DHH | others - hour hand |
| 04R27DHM | others - minute hand |
| 0354815 | others - winding stem |
| 8420671025 | others - case |
| 82720640 | others - case ring |
| 84201300XG14 | others - dial |
| A110AS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |
Caliber 8420
