The Seiko V821-1020 is a watch model based on the V821 movement.
Parts List
| 9M35A7ZJD0 | crown - crown |
| 9M35A7ZJF0 | crown - crown |
| 9M35A7ZJL0 | crown - crown |
| 0G190BA11 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
| FES1NZ | band - band |
| FES2NZ | band - band |
| FES3NZ | band - band |
| FF10JZ | band - band |
| FF09JZ | band - band |
| 3HA090F1BAW | others - second hand |
| 3HA090F1BAM | others - second hand |
| 2HA085FCBAK | others - minute hand |
| 2HA085FCBAR | others - minute hand |
| 3HA090F1BAY | others - second hand |
| 1HA055FABAJ | others - hour hand |
| 1HA055FABAK | others - hour hand |
| 1HA055FABAR | others - hour hand |
| 2HA085FCBAJ | others - minute hand |
| V8211020N0D | others - case |
| V8211020N0C | others - case |
| V8211020N0A | others - case |
| V8211020N0B | others - case |
| 0354122 | others - winding stem |
| T160BS | others - push pin |
| V8211020N0E | others - case |