The Seiko V401-5780 is a watch model based on the V401 movement.
Parts List
| SA2A27LN03 | crystal - crystal |
| 35MX7NN1 | crown - crown |
| 35MX7NS1 | crown - crown |
| 6M35B1NNG0 | crown |
| 6M35B1SNW0 | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| F0G1AB | band - band |
| F0G2BB | band - band |
| 2AC050A1BNS | others - minute hand |
| 3BA050F1BNG | others - second hand |
| 3BA050F1BNS | others - second hand |
| 1AC035A1BNG | others - hour hand |
| 1AC035A1BNS | others - hour hand |
| 2AC050A1BNG | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351155 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 81607539 | others - bracelet fixing pin |
| V401578079A | others - case |
| 82834410 | others - case ring |
| V40157807SA | others - case |
| V4015780 | others - case back |