The Seiko YS30-4030 is a watch model based on the YS30 movement.
Parts List
| 0G1100N01 | case back gasket |
| HL77D | band - leather band |
| HL78D | band - leather band |
| HL92D | band - leather band |
| KL77B | band - leather band |
| KL78B | band - leather band |
| KL79B | band - leather band |
| A100BS | others - push pin (for mb) |
Other models with the same movement
| YS30-4040 |