The Seiko V401-0820 is a watch model based on the V401 movement.
Parts List
| 150A02LN03 | crystal - crystal (inorganic) |
| 6M35B3NNG0 | crown - crown |
| 0F150BAA5 | case back gasket - case back gasket |
| 527AMK | band |
| 3BA075F1BNG | others - second hand |
| 1AC040A1BNG | others - hour hand |
| 2AC055A1BNG | others - minute hand |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| B080BS | others - push pin |