The Seiko W650-4000 is a watch model based on the W650 movement.
Parts List
| 0F300BED1 | case back gasket - case back gasket |
| 80632430 | pusher - front button |
| 80632479 | pusher - button (4h) |
| 80632499 | pusher - button |
| 8B75JB | band |
| AD006BA11 | others - crown and stem gasket |
| 83200211 | others - button spring clip |
| 86514399 | others - pusher gasket |