The Seiko 7820-8050 is a watch model based on the 7820 movement.
Parts List
| 290R12GNG0 | crystal |
| 290R12GNS0 | crystal |
| 35R08NA1 | crown |
| 35R30NS1 | crown |
| 35R30NA1 | crown |
| 0G2495B01 | case back gasket |
| 0H2800B09 | case back gasket |
| YK711 | band - leather band |
| YK712 | band - leather band |
| YK722 | band - leather band |
| 13C16ABH | hand - hour hand |
| 13C16ABM | hand - minute hand |
| 13C16CGH | hand - hour hand |
| 13C16CGM | hand - minute hand |
| 11C22CGH | others - hour hand |
| 11C22CGM | others - minute hand |
| 0354780 | others - setting/winding stem |
| 782080500157 | others - dial |
| 782080500158 | others - dial |
| 7820805011 | others - case |
| 7820805025 | others - case |
| 7820806001G9 | others - dial |
| 83335141 | others - bezel |
| 83335149 | others - bezel |
| A180CS | others - push pin |