The Seiko V400-1G20 is a watch model based on the V400 movement.
Parts List
| 140A02JN02 | crystal - crystal |
| 6M30E3SNG0 | crown - crown |
| 0F150BA1S | case back gasket - case back gasket |
| 4959MB-LK2 | band - link |
| 4959MB | band - metal band |
| 4959MB-BKI | clasp - buckle |
| 4959MB-PB2 | clasp - parts for buckle |
| 1N005F98XS14 | others - dial |
| 1N009 | others - machine code |
| 0351807 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 82845070 | others - case ring |
| 81181919 | others - bracelet fixing pipe |
| 1N001G20 | others - case back |
| 1N001G2004D | others - case |
| 2CE052S0BNG | others - minute hand |
| 1CE035S0BNG | others - hour hand |