The Seiko Y151-5B20 is a watch model based on the Y151 movement.
Parts List
| SA0A92LR03 | crystal - crystal |
| 30MT0NAA | crown - crown |
| 0F180NA1S | case back gasket - case back gasket |
| FC86BG | band - band |
| FC87BG | band - band |
| FC88BG | band - band |
| 1BC040A1BNG | others - hour hand |
| 2BC060A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BK037A0BAA | others - hour hand |
| 1BK037A0BNG | others - hour hand |
| 2BK057A0BAA | others - minute hand |
| 2BK057A0BNG | others - minute hand |
| A120BS | others - push pin (for lb) |
| Y1515B207S | others - case |
| 82831920 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| SA0A92LR03 | crystal - crystal |
| 30MT0NAA | crown - crown |
| 0F180NA1S | case back gasket - case back gasket |
| FC86BG | band - band |
| FC87BG | band - band |
| FC88BG | band - band |
| 1BC040A1BNG | others - hour hand |
| 2BC060A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 1BK037A0BAA | others - hour hand |
| 1BK037A0BNG | others - hour hand |
| 2BK057A0BAA | others - minute hand |
| 2BK057A0BNG | others - minute hand |
| A120BS | others - push pin (for lb) |
| Y1515B207S | others - case |
| 82831920 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |