The Seiko Y151-0A20 is a watch model based on the Y151 movement.
Parts List
| 180W40JN01 | crystal |
| 30MA2NA1 | crown - crown |
| 0A1700B01 | case back gasket |
| ZA42A | band - metal band |
| 3BA075F0BNG | others - second hand |
| 1BB050A2BNG | others - hour hand |
| 0351807 | others - winding stem |
| 82736820 | others - case ring |
| A120AS | others - push pin |
| Y1510A20 | others - case back |
| Y1510A207X | others - case |
| Y1510A40X914 | others - dial |
| Y1510A50XS14 | others - dial |
| Y1511 | others - machine code |
| 2BB075A2BNG | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |