The Seiko 7820-8030 is a watch model based on the 7820 movement.
Parts List
| 290R10GNS0 | crystal |
| 290R10GNG0 | crystal |
| 35R08NA1 | crown |
| 35R08NS1 | crown - crown |
| 35R30NS1 | crown |
| 35R30NA1 | crown |
| 0G2495B01 | case back gasket |
| 0H2800B09 | case back gasket |
| BK302 | band - leather band |
| BK311 | band - leather band |
| 12C20DGH | hand - hour hand |
| 12C20DGM | hand - minute hand |
| 12C20CSH | others - hour hand |
| 12C20CSM | others - minute hand |
| 12C20DSH | others - hour hand |
| 12C20DSM | others - minute hand |
| 0354780 | others - setting/winding stem |
| 782080202103 | others - dial |
| 7820802022B4 | others - dial |
| 7820803001G9 | others - dial |
| 7820803011 | others - case |
| 7820803025 | others - case |
| 83349781 | others - bezel |
| 83349789 | others - bezel |
| A180CS | others - push pin |