The Seiko V401-0020 is a watch model based on the V401 movement.
Parts List
| 180A02LN03 | crystal |
| 30MB5NH1 | crown |
| 0F150BAA5 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| DK98F | band - band |
| 07PA5NGH | others - hour hand |
| 07PA5NGM | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 07SC43NG | others - second hand |
| A120BS | others - push pin (for lb) |
| 0351155 | others - winding stem |
| 82809670 | others - case ring |
| V4010020 | others - case back |
| V401002079A | others - case |
| 82368871 | others - bezel |
| 1AF047LMBNG | others - hour hand |
| 2AF070LBBNG | others - minute hand |
| 06P57NGM | others - minute hand |
| 06P57NGH | others - hour hand |