The Seiko V400-0850 is a watch model based on the V400 movement.
Parts List
| 170A02LN03 | crystal |
| 6M35B3NNG0 | crown - crown |
| 0H1700B01 | case back gasket - bezel gasket |
| 70L8KQ-LKG | band - link |
| 70L8LQ-LKG | band - link |
| 70L8LQ | band - band |
| 70L8KQ | band - band |
| 70L8LQ-BK4G | clasp - buckle |
| 70L8KQ-BK4G | clasp - buckle |
| 2DG062LABNG | others - minute hand |
| 1DF047A1BNG | others - hour hand |
| 1DG040LABNG | others - hour hand |
| 2DF065A1BNG | others - minute hand |
| 81606439 | others - bracelet fixing pin |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82819250 | others - case ring |
| V40008502HA | others - case |
| V4000850 | others - case back |
| V40010 | others - machine code |
| V4002970XG14 | others - dial |
| V4002970XS14 | others - dial |
| V4002980XS19 | others - dial |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| V40008502SA | others - case |