The Seiko V400-6439 is a watch model based on the V400 movement.
Parts List
| RE5A53JN02 | crystal - crystal |
| 6M35B7SNG4 | crown - crown |
| 0H1800B01 | case back gasket - case back gasket |
| 4868YQ | band - band |
| 4868YQ-LK3 | band - link |
| 4868YQ-BKL | clasp - buckle |
| 4868YQ-PB2 | clasp - parts for buckle |
| 2DE042LABDG | others - minute hand |
| 1DE027LABDG | others - hour hand |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190875 | others - bracelet fixing pipe |
| 82837850 | others - case ring |
| V40010 | others - machine code |
| V4004151XG24 | others - dial |
| V4004381XB15 | others - dial |
| V400643925A | others - case |
| V4006439 | others - case back |
| DZ0040B01 | others - crown and stem gasket |
| 4868YQ-EP2 | others - endpiece |