The Seiko 7820-5410 is a watch model based on the 7820 movement.
Parts List
| SA2N32GM01 | crystal |
| 35R30NA1 | crown |
| 35R08NS1 | crown - crown |
| 35R30NS1 | crown |
| 0A2930N01 | case back gasket - case back gasket |
| AV341 | band - leather band |
| 11C36DSH | hand - hour hand |
| 11C36DSM | hand - minute hand |
| 7820541011 | others - case |
| 782055608369 | others - dial |
| 83107230 | others - case ring |
| A180CS | others - push pin |
| 0354780 | others - setting/winding stem |
| 0884710 | others - holding ring for dial |