The Seiko Y709-5020 is a watch model based on the Y709 movement.
Parts List
| ES0W72GN00 | crystal |
| FH3081B01 | case back gasket |
| DZ0885B01 | case back gasket |
Other models with the same movement
| Y709-4000 |
| Y709-4019 |
| Y709-4020 |
| Y709-4039 |
| Y709-4040 |
| Y709-4069 |
| Y709-4079 |
| Y709-4089 |
| Y709-4090 |
| Y709-5000 |
| Y709-5019 |
| Y709-5049 |
| Y709-5050 |