The Seiko V400-0840 is a watch model based on the V400 movement.
Parts List
| 200W97LN03 | crystal - crystal |
| 6M35C7NNGB | crown - crown |
| 6M35C7NNGA | crown - crown |
| 0F170BA1S | case back gasket - case back gasket |
| 70L6LQ | band - band |
| 7BA8LZ | band - leather band |
| 70L6KQ | band - band |
| 7BA9KZ | band - band |
| 70L6KQ-LKG | band - link |
| 70L6LQ-LKG | band - link |
| 70L6KQ-BK4G | clasp - buckle |
| 70L6LQ-BK4G | clasp - buckle |
| 1DC055A1BNG | others - hour hand |
| 2DC080A1BNG | others - minute hand |
| 2DD080AABAL | others - minute hand |
| 2DD080AABAR | others - minute hand |
| 1DD055AABAL | others - hour hand |
| 1DD055AABAR | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 81611569 | others - bracelet fixing pin |
| V40008407HA | others - case |
| 82814230 | others - case ring |
| 0351156 | others - winding stem |
| V40008407SA | others - case |
| DZ0040B01 | others - crown and stem gasket |
| V40010 | others - machine code |
| V4002950XL14 | others - dial |
| V4002950XS14 | others - dial |
| V4002960XS19 | others - dial |
| V4002960XS29 | others - dial |