The Seiko 5Y30-5020 is a watch model based on the 5Y30 movement.
Parts List
| SAFN36JN01 | crystal - crystal |
| 30MA6NA1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2702N01 | case back gasket - case back gasket |
| B1588G | band - metal band |
| B1588G-BK5G | clasp - clasp |
| 10T08NGM | others - minute hand |
| 0351670 | others - winding stem |
| 5Y305020 | others - case back |
| 5Y30502025 | others - case |
| 5Y305050XB14 | others - dial |
| 5Y309 | others - machine code |
| 82803560 | others - case ring |
| A160BS | others - push pin |
| 10T04NGH | others - hour hand |