The Seiko Y150-0A20 is a watch model based on the Y150 movement.
Parts List
| 160W50LN01 | crystal |
| 30MT0NF3 | crown |
| 0H1500N01 | case back gasket - case back gasket |
| 86577720 | crystal gasket |
| KZ71C | band - metal band |
| KZ72C | band - metal band |
| 06V28NGM | others - minute hand |
| 0351807 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604279 | others - bracelet fixing pin |
| EZ0035B01 | others - crown and stem gasket |
| 06V50NGH | others - hour hand |