The Seiko W359-0A20 is a watch model based on the W359 movement.
Parts List
| 280WS2LU01 | crystal |
| DG306BE18 | case back gasket |
| 86578445 | crystal gasket |
| 80605060 | pusher |
| 8060550A | pusher |
| 8060550C | pusher |
| EC0060B01 | pusher - pusher gasket |
| 8060550D | pusher - button (4h) |
| 004ZQD | band |
| A04ZQD | band - resin band |
| A200BS | others - push pin |
| W3590 | others - machine code |
| W3590A20N2 | others - case |
| 81505224 | others - screw |
| 83200271 | others - button spring clip |
| 81518099 | others - case back screw |
| 81350460 | others - button spring |
Other models with the same movement
| W359-0A08 |
| W359-0A18 |
| W359-0A28 |
| W359-4A08 |
| W359-4A10 |
| W359-4A18 |
| W359-4A20 |
| W359-4A28 |
| W359-4A29 |
| W359-4A38 |
| W359-4A48 |
| W359-4A58 |
| W359-4A68 |
| W359-4A70 |
| W359-5A00 |
| W359-5A08 |
| W359-5A10 |
| W359-5A18 |