The Seiko Y131-5155 is a watch model based on the Y131 movement.
Parts List
| SACN68AN00 | crystal - crystal (organic) |
| 35MB0NF1 | crown |
| 0H2520N01 | case back gasket - case back gasket |
| 122LB | band - leather band |
| A180BS | others - push pin |
| 0354786 | others - winding stem |
| 09C38NGH | others - hour hand |
| 09C38NGM | others - minute hand |
| EZ0058B01 | others - crown and stem gasket |
| 13SC04A2 | others - second hand |