The Seiko Y150-5K90 is a watch model based on the Y150 movement.
Parts List
| BA1A56JN02 | crystal - crystal |
| 30M82TA1 | crown - crown |
| 30M82NS1 | crown - crown |
| 0F150NA1S | case back gasket - case back gasket |
| E0A3BB | band - band |
| E0A4BB | band - band |
| E0A5AB | band - band |
| E0A6AB | band - band |
| 1CA030F6BNG | others - hour hand |
| 1CA030F6BNS | others - hour hand (upper) |
| 2CA040F0BNG | others - minute hand |
| 2CA040F0BNS | others - minute hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82729740 | others - case ring |
| Y1505K9075 | others - case |
| Y1505K9079 | others - case |
| Y1501 | others - machine code |
| Y1501H60XB19 | others - dial |
| Y1501H60XS19 | others - dial |
| Y1501H70XA19 | others - dial |
| Y1501H80XA19 | others - dial |
| EZ0035B01 | others - crown and stem gasket |