The Seiko W306-4000 is a watch model based on the W306 movement.
Parts List
| EG0115B01 | case back gasket - button gasket |
| 0Z2900B01 | bezel gasket - dichtung |
| 8061680A | pusher |
| AL83E | band - band |
| W3064000N2 | others - case |
| A190BS | others - push pin |
Other models with the same movement
| W306-4010 |
| W306-4A00 |