The Seiko Y142-5020 is a watch model based on the Y142 movement.
Parts List
| ES7N58AN00 | crystal |
| 35MB2NC1 | crown |
| 35MB2NF1 | crown |
| 006MG | band - metal band |
| 006ML | band - metal band |
| 008LF | band - leather band |
| A180BS | others - push pin |
| 0354866 | others - winding stem |
| EZ0058B01 | others - crown and stem gasket |