The Seiko V400-0120 is a watch model based on the V400 movement.
Parts List
| 200P13L20B | crystal |
| 200P13L20A | crystal |
| 200P13L20C | crystal |
| 35MX7NN1 | crown - crown |
| 0F150BAA5 | case back gasket - case back gasket |
| 86571830 | crystal gasket |
| 505ZZK | band |
| 534ZZK | band - leather band |
| 506ZZK | band |
| 518ZBK | band |
| A110BS | others - push pin (for mb) |
| DZ0040B01 | others - crown and stem gasket |
| 06R11DGH | others - hour hand |
| 0351156 | others - winding stem |
| 06R59NGH | others - hour hand |
| 06R59NGM | others - minute hand |
| 06R11DGM | others - minute hand |
| 2DC060A1BNG | others - minute hand |
| 1DC040A1BNG | others - hour hand |