The Seiko V400-6420 is a watch model based on the V400 movement.
Parts List
| RE5A57JN02 | crystal - crystal |
| 6M35E7SNG0 | crown - crown |
| 6M35E7SNW0 | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| 48C1AB | band - band |
| 48C1BB | band - band |
| 48C1AB-LK3 | band - link |
| 48C1BB-LK3 | band - link |
| 48C1BB-BKI | clasp - buckle |
| 48C1AB-BKI | clasp - buckle |
| 48C1BB-BK1 | clasp - buckle |
| 48C1AB-BK1 | clasp - buckle |
| 1DE040LABDG | others - hour hand |
| 1DE040LABDS | others - hour hand |
| 2DE055LABDG | others - minute hand |
| 2DE055LABDS | others - minute hand |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190875 | others - bracelet fixing pipe |
| V400642025A | others - case |
| 82839930 | others - case ring |
| V4006420 | others - case back |
| V400642029A | others - case |
| V40010 | others - machine code |
| V4004200XB13 | others - dial |
| V4004200XG14 | others - dial |
| DZ0040B01 | others - crown and stem gasket |