The Seiko 5Y30-5A20 is a watch model based on the 5Y30 movement.
Parts List
| SAGN29JN01 | crystal |
| SAGN29JN | crystal |
| 30N77NN1 | crown |
| 0H2700B01 | case back gasket - case back gasket |
| 0H2700B0 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| Z1431G | band |
| Z1432G | band |
| Z1431G-BK5G | clasp - clasp |
| Z1432G-BK5G | clasp - clasp |
| 1BA060A1BNG | others - hour hand |
| 1BG060LABDG | others - hour hand |
| 2BG090LABDG | others - minute hand |
| 0351671 | others - winding stem |
| 5Y305A20 | others - case back |
| 5Y305A2025 | others - case |
| 5Y305A80XB14 | others - dial |
| 5Y305A80XG14 | others - dial |
| 5Y305A80XS14 | others - dial |
| 5Y305B00X994 | others - dial |
| 82820650 | others - case ring |
| A180BS | others - push pin |
| 09T13NGH | others - hour hand |
| 09T13NGM | others - minute hand |
| 09T05DGM | others - minute hand |
| 2BA090A1BNG | others - minute hand |
| 09T05DGH | others - hour hand |