The Seiko V400-0420 is a watch model based on the V400 movement.
Parts List
| 35MM9NS1 | crown - crown |
| 0F240BAA3 | case back gasket - case back gasket |
| LK90A | band - band |
| 2CC095A1BAA | others - minute hand |
| 235W13HN01 | others - crystal (inorganic) |
| V4000420RS6 | others - case |
| 82815370 | others - case ring |
| A170AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 1CC065A1BAA | others - hour hand |