The Seiko 5Y30-5A40 is a watch model based on the 5Y30 movement.
Parts List
| SAGN29JV01 | crystal |
| 30N77NN1 | crown |
| 0H2700B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| Z1432G | band |
| Z1432G-BK5G | clasp - clasp |
| 09T47DGM | others - minute hand |
| 5Y305A40 | others - case back |
| 5Y305A4025 | others - case |
| 5Y305B20X994 | others - dial |
| 5Y305B20XG14 | others - dial |
| 82820650 | others - case ring |
| A180BS | others - push pin |
| 08T01DGM | others - minute hand |
| 08T01DGH | others - hour hand |