The Seiko 5Y30-7B30 is a watch model based on the 5Y30 movement.
Parts List
| 280WB1LN | crystal |
| 280WB1LN01 | crystal |
| 30ME9NN1 | crown |
| 0F230BAA | case back gasket |
| 0F230BAA3 | case back gasket - case back gasket |
| B1679K | band - metal band |
| B1679K-BK5G | clasp - clasp |
| 0D005BA13 | others - crown and stem gasket |
| 82732490 | others - case ring |
| 5Y307B30 | others - case back |
| 5Y307B3025 | others - case |
| 5Y307B90XS19 | others - dial |
| A180BS | others - push pin |
| 12T15AGM | others - minute hand |
| 12T15AGH | others - hour hand |