The Seiko 5Y30-5A90 is a watch model based on the 5Y30 movement.
Parts List
| BA5N15JV01 | crystal |
| 30N77NN1 | crown |
| DZ0065B01 | case back gasket - button gasket |
| 0H2600B01 | case back gasket - case back gasket |
| B1571G | band |
| B1571G-BK5G | clasp - clasp |
| 1BG045LABDG | others - hour hand |
| 06T07DGH | others - hour hand |
| 2BG070LABDG | others - minute hand |
| 5Y305A90 | others - case back |
| 5Y305A9025 | others - case |
| 5Y305C00XB14 | others - dial |
| 82820330 | others - case ring |
| A150BS | others - push pin |
| 06T07DGM | others - minute hand |