The Seiko V400-T020 is a watch model based on the V400 movement.
Parts List
| 175A09L20A | crystal |
| 30ME3NN1 | crown |
| FE178BA11 | case back gasket |
| 585ZBK | band |
| 584ZBK | band |
| 06R11DGH | others - hour hand |
| 06R11DGM | others - minute hand |
| 06R63AGM | others - minute hand |
| 06R63AGH | others - hour hand |