The Seiko W309-5010 is a watch model based on the W309 movement.
Parts List
| ES7W64LN01 | crystal |
| 86560320 | case back gasket - plastic gasket for case back |
| EG0115B01 | case back gasket - button gasket |
| 86575500 | crystal gasket |
| 80600363 | pusher |
| GA88A | band - metal band |
| A180CS | others - push pin |