The Seiko V400-523A is a watch model based on the V400 movement.
Parts List
| ES1A87LN03 | crystal |
| 30MH7NK4 | crown |
| 0F160BAA5 | case back gasket - case back gasket |
| DT71A | band - metal band |
| 2DE037LABNG | others - minute hand |
| 1DE025LABNG | others - hour hand |
| 04R13NGH | others - hour hand |
| 04R13NGM | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 81606679 | others - bracelet fixing pin |
| 04R13DGM | others - minute hand |
| 04R13DGH | others - hour hand |