The Seiko V401-0120 is a watch model based on the V401 movement.
Parts List
| 190P17L20A | crystal |
| 6M30A1NNG0 | crown |
| 6M30A1NNA0 | crown |
| 0F170BAA1 | case back gasket |
| AC004BAA1 | case back gasket - crown and stem gasket |
| 86580856 | crystal gasket - plastic gasket for crystal |
| ZA74B | band - metal band |
| ZA75B | band - metal band |
| 3BA125F1BNG | others - second hand |
| 0351156 | others - winding stem |
| 08P87NGH | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81607579 | others - bracelet fixing pin |
| 81181879 | others - bracelet fixing pipe |
| 08P87NGM | others - minute hand |
| 08SC29NG | others - second hand |