The Seiko V400-0820 is a watch model based on the V400 movement.
Parts List
| 175A11JN02 | crystal - crystal |
| 6M35C9SZN0 | crown - crown |
| 0F150BA1S | case back gasket - case back gasket |
| EB53HB | band - band |
| EB54HB | band - band |
| 1DD042FABNB | others - hour hand |
| 1DX045FABNB | others - hour hand |
| 2DX065FABNB | others - minute hand |
| 2DX065FBBNB | others - minute hand |
| 82852670 | others - case ring |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| V4000820WEA | others - case |
| V4000820 | others - case back |
| V40010 | others - machine code |
| V4002850XE19 | others - dial |
| V4002860XS19 | others - dial |