The Seiko 8420-5880 is a watch model based on the 8420 movement.
Parts List
| ES6N78SN00 | crystal |
| 25M10NA1 | crown |
| 0G1700N01 | case back gasket |
| BGA15 | band - leather band |
| 07R03DGH | others - hour hand |
| 0354815 | others - winding stem |
| 82706280 | others - case ring |
| 84201980XB14 | others - dial |
| 84201980XS14 | others - dial |
| 8420588025 | others - case |
| A110AS | others - push pin |
| 07R03DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 8420
