The Seiko V400-0900 is a watch model based on the V400 movement.
Parts List
| 150A02LN03 | crystal - crystal (inorganic) |
| 6M30A3NNG0 | crown - crown |
| 0H1700B01 | case back gasket - bezel gasket |
| OH1700B01 | case back gasket |
| 70R8XZ | band - band |
| 70R8MZ | band - band |
| 70R8YZ | band - band |
| 70R8MZ-LK4 | band - link |
| 70R8XZ-LK4 | band - link |
| 70R8YZ-LK4 | band - link |
| 70R8YZ-BKF | clasp - buckle |
| 70R8YZ-PB1 | clasp - parts for buckle |
| 70R8XZ-BKF | clasp - buckle |
| 70R8XZ-PB1 | clasp - parts for buckle |
| 70R8MZ-BKK | clasp - buckle |
| 70R8MZ-PB2 | clasp - parts for buckle |
| 2DE057LABNG | others - minute hand |
| 1DE037LABNG | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82819250 | others - case ring |
| V40009002HA | others - case |
| V40009002SA | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| V40010 | others - machine code |
| V4003250XG14 | others - dial |
| V4003250XS14 | others - dial |
| V4003250XS24 | others - dial |
| V4003250XS34 | others - dial |
| V4003250XZ14 | others - dial |