The Seiko 5Y30-5J80 is a watch model based on the 5Y30 movement.
Parts List
| SA6W01LN | crystal |
| SA6W01LN01 | crystal |
| 30MD9NN1 | crown - crown |
| 0F230BAA | case back gasket |
| 0F230BAA3 | case back gasket - case back gasket |
| 86591770 | crystal gasket - plastic gasket for crystal |
| B1531K | band - metal band |
| B1531K-BK5G | clasp - clasp |
| 09T25DGM | others - minute hand |
| 09T25DGH | others - hour hand |
| 5Y305J80 | others - case back |
| 5Y305J8075 | others - case |
| 5Y305J90XB14 | others - dial |
| 82832830 | others - case ring |
| A180BS | others - push pin |
| 0D005BA13 | others - crown and stem gasket |