The Seiko V401-1850 is a watch model based on the V401 movement.
Parts List
| 160A15JN02 | crystal - crystal (inorganic) |
| 6M35B3SNW0 | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| E086AB | band - band |
| E087AB | band - band |
| 2AA062A5BNG | others - minute hand |
| 2AA062A5BNS | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 3BA075F1BNS | others - second hand |
| 1BA045A7BNG | others - hour hand |
| 1BA045A7BNS | others - hour hand |
| 0351155 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190075 | others - bracelet fixing pipe |
| 82826650 | others - case ring |
| V40118507EA | others - case |
| V40118507EB | others - case |
| V40110 | others - machine code |
| V4015670XB13 | others - dial |
| V4015670XS14 | others - dial |
| V4015670XZ13 | others - dial |