The Seiko Y520-0A30 is a watch model based on the Y520 movement.
Parts List
| 120A02LN03 | crystal - crystal |
| 25M18NV1 | crown - crown |
| 25M18NF1 | crown |
| 0F110BA16 | case back gasket |
| RT82A | band - metal band |
| RT83A | band - metal band |
| 03V08DCH | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 0351930 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 03V08DCM | others - minute hand |