The Seiko W650-4250 is a watch model based on the W650 movement.
Parts List
| K00P23L30A | crystal - crystal |
| K00P23L30B | crystal - crystal |
| 0F300BED1 | case back gasket - case back gasket |
| 86640250 | crystal gasket - plastic gasket for crystal |
| 80710277 | pusher - button |
| 80710270 | pusher - button |
| 80710274 | pusher - button |
| 80710294 | pusher |
| 7C31WB | band - band |
| 7C32WB | band - band |
| 7C33WB | band - band |
| W6504250N2A | others - case |
| W6504250N2B | others - case |
| W6504250N2C | others - case |
| 86510819 | others - conducting plate |
| 86510839 | others - conducting plate |
| T160BS | others - push pin |
| W65050 | others - machine code |
| W65053 | others - machine code |
| AD006BA11 | others - crown and stem gasket |
| 83200219 | others - button spring clip |
| 81350760 | others - button spring (front) |
| 81518099 | others - case back screw |
| 81351639 | others - button spring |