The Seiko W309-505F is a watch model based on the W309 movement.
Parts List
| SA7W84LM03 | crystal |
| FH2881B01 | case back gasket - case back gasket |
| EG0115B01 | case back gasket - button gasket |
| 86575662 | crystal gasket - plastic gasket for crystal |
| 80600383 | pusher |
| 249LA | band - leather band |
| A180BS | others - push pin |
| W3090 | others - machine code |
| W30950509999 | others - panel cover |
| W309505F6K | others - case |