The Seiko V401-0520 is a watch model based on the V401 movement.
Parts List
| 170N59HK01 | crystal |
| 6M30B5NNG1 | crown - crown |
| 0F150BAA5 | case back gasket - case back gasket |
| DA57A | band - metal band |
| 3BA075F1BNG | others - second hand |
| 0351155 | others - winding stem |
| 1AA050FBBNG | others - hour hand |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82809350 | others - case ring |
| V401052075 | others - case |
| V40110 | others - machine code |
| V4011420XS14 | others - dial |
| DZ0040B01 | others - crown and stem gasket |
| 2AA070FABNG | others - minute hand |