The Seiko 5P30-5B90 is a watch model based on the 5P30 movement.
Parts List
| REBN06JN01 | crystal |
| 30MA6NA1 | crown - crown |
| 0H2300B01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 86580260 | crystal gasket |
| LK54C | band - leather band |
| 0351670 | others - winding stem |
| 08T10DGH | others - hour hand |
| 5P305B90 | others - case back |
| 5P305B9025 | others - case |
| 5P305C70XG14 | others - dial |
| 5P309 | others - machine code |
| 82803400 | others - case ring |
| A160BS | others - push pin |
| 08T10DGM | others - minute hand |