The Seiko V401-0550 is a watch model based on the V401 movement.
Parts List
| 180A02LN03 | crystal |
| 6M30A3NNG3 | crown - crown |
| 6M30A3SJA0 | crown |
| 0F150BAA5 | case back gasket - case back gasket |
| KK96D | band - leather band |
| KK97D | band - leather band |
| 3BA075F1BNG | others - second hand |
| 1AC047A1BAA | others - hour hand |
| 2AC067A1BAA | others - minute hand |
| A110BS | others - push pin (for mb) |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 1AC047A1BNG | others - hour hand |
| 2AC070A1BNG | others - minute hand |