The Seiko W339-4B40 is a watch model based on the W339 movement.
Parts List
| 0Z2900B01 | bezel gasket - dichtung |
| EC0060B01 | pusher - pusher gasket |
| 80605060 | pusher |
| 8060550B | pusher |
| 8060550F | pusher |
| 7AB5ME | band |
| 81501260 | others - case back screw |
| T200CS | others - push pin |
| W3393 | others - machine code |
| W3394B40N2 | others - case |
| 81350540 | 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 |
| W339-4B50 |
| W339-4B60 |
| W339-4B70 |
| W339-4B80 |
| W339-4B90 |
| W339-4C00 |
| W339-4C10 |