The Seiko W339-4B90 is a watch model based on the W339 movement.
Parts List
| 0Z2900B01 | bezel gasket - dichtung |
| 80605060 | pusher |
| 8060648A | pusher - button |
| EC0060B01 | pusher - pusher gasket |
| 8060648B | pusher - button (8h) |
| 8AF3JZ | band - band |
| 8AF3NZ | band - band |
| 8AF3MZ | band - resin band |
| T180CS | others - push pin |
| W3394B90N2A | others - case |
| W3394B90N2 | others - case |
| 81350540 | others - button spring |
| 81350460 | others - button spring |
| 81400669 | others - button spring clip |
Other models with the same movement
| W339-4A08 |
| W339-4A10 |
| W339-4A20 |
| W339-4A30 |
| W339-4A40 |
| W339-4A48 |
| W339-4A50 |
| W339-4A60 |
| W339-4A68 |
| W339-4A70 |
| W339-4A90 |
| W339-4B00 |
| W339-4B10 |
| W339-4B20 |
| W339-4B30 |
| W339-4B40 |
| W339-4B50 |
| W339-4B60 |
| W339-4B70 |
| W339-4B80 |
| W339-4C00 |
| W339-4C10 |