The Seiko Y960-503A is a watch model based on the Y960 movement.
Parts List
| ES3W50GM02 | crystal |
| 35M82NS1 | crown - crown |
| 86173340 | case back gasket - plastic gasket for crystal |
| 86569100 | crystal gasket - plastic gasket for crystal |
| 035ME | band - metal band |
| A180BS | others - push pin |
| 0354795 | others - setting/winding stem |
| 0Z0060B01 | others - crown and stem gasket |