The Seiko 7853-5020 is a watch model based on the 7853 movement.
Parts List
| ES0N54GA00 | crystal |
| 35M68NS1 | crown - crown |
| 35M68NA1 | crown - crown |
| DJ2709B4A | case back gasket |
| DL275B44 | case back gasket |
Other models with the same movement
| 7853-5000 |
| 7853-5010 |
| 7853-5030 |
| 7853-5040 |
| 7853-7000 |
| 7853-7010 |
| 7853-7020 |
| 7853-8000 |