The Seiko V401-1720 is a watch model based on the V401 movement.
Parts List
| 165A02LN03 | crystal |
| 6M35Z7NNG0 | crown |
| 6M35Z7SNW0 | crown - crown |
| 0D120BA11 | case back gasket - case back gasket |
| 8082KZ | band |
| 8082JZ | band - band |
| 2AC062A1BNS | others - minute hand |
| 1AC042A1BNS | others - hour hand |
| 3BA075F1BNG | others - second hand |
| 3BA075F1BNS | others - second hand |
| 2AC062A1BNG | others - minute hand |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81190055 | others - bracelet fixing pipe |
| 81610199 | others - bracelet fixing pin |
| 82824390 | others - case ring |
| V401172029A | others - case |
| 1AC042A1BNG | others - hour hand |