The Seiko Y131-5070 is a watch model based on the Y131 movement.
Parts List
| ESAN64GM02 | crystal - crystal (inorganic) |
| 35M98NS1 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2702N01 | case back gasket - case back gasket |
| 129LB | band - leather band |
| A180BS | others - push pin |
| 0354786 | others - winding stem |