The Seiko W358-0A20 is a watch model based on the W358 movement.
Parts List
| 280P52LB0B | crystal |
| DG306BE18 | case back gasket |
| 86578445 | crystal gasket |
| EC0060B01 | pusher - pusher gasket |
| 8060550E | pusher |
| 8060506C | pusher |
| A04ZQY | band - rubber band |
| 81505221 | others - screw(3h) |
| 8239516A | others - ornament bezel |
| A200BS | others - push pin |
| W3580 | others - machine code |
| W3580A20N2 | others - case |
| 81350460 | others - button spring |
| 81518099 | others - case back screw |
| 81400669 | others - button spring clip |
Other models with the same movement
| W358-0A00 |
| W358-0A08 |
| W358-0A30 |
| W358-4A08 |
| W358-4A10 |
| W358-4A18 |
| W358-4A19 |
| W358-5A08 |
| W358-5A10 |
| W358-5A19 |