The Seiko Y150-5P20 is a watch model based on the Y150 movement.
Parts List
| RE6A55JN02 | crystal - crystal |
| 6M30X3SNGA | crown - crown |
| 0F140BA1S | case back gasket - case back gasket |
| 49R5YZ-LK4 | band - link |
| 49R5YZ | band - band |
| 49R5YZ-BKN | clasp - buckle |
| 2CE040L0BDG | others - minute hand |
| 1CE027L0BDG | others - hour hand |
| 0351807 | others - winding stem |
| DB004BAD1 | others - crown and stem gasket |
| Y1501 | others - machine code |
| Y1501S48XG14 | others - dial |
| 81190075 | others - bracelet fixing pipe |
| 81613199 | others - bracelet fixing pin |
| Y1505P2001B | others - case |
| 82845710 | others - case ring |
| Y1505P20 | others - case back |