The Seiko Y150-6A20 is a watch model based on the Y150 movement.
Parts List
| 170W50LN01 | crystal |
| 30M56NF1 | crown - crown |
| 30M56NB1 | crown |
| 0H1500N01 | case back gasket - case back gasket |
| DK73G | band - leather band |
| DK74G | band - leather band |
| A110BS | others - push pin (for mb) |
| 05V52NGH | others - hour hand |
| 0351807 | others - winding stem |
| 05V52NGM | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
| 05V08N1M | others - minute hand |
| 05V08N1H | others - hour hand |