The Seiko Y131-6220 is a watch model based on the Y131 movement.
Parts List
| 250N50LN01 | crystal |
| 30MR4NF1 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G2300B01 | case back gasket |
| JK75B | band - leather band |
| A140BS | others - push pin |
| A160BS | others - push pin |
| 0354786 | others - winding stem |
| 13SC04A2 | others - second hand |
| 1AD075AMBNG | others - hour hand |
| 10C66NGM | others - minute hand |
| 10C66NGH | others - hour hand |