The Seiko W650-4280 is a watch model based on the W650 movement.
Parts List
| K00P01L60A | crystal - crystal (inorganic) |
| 0F300BED1 | case back gasket - case back gasket |
| WQ03DZ | band - band |
| W6504280SLA | others - case |
| AD006BA11 | others - crown and stem gasket |
| 81518099 | others - case back screw |
| W6504280 | others - case back |
| T160BS | others - push pin |