The Seiko 4N70-5020 is a watch model based on the 4N70 movement.
Parts List
| RELN23SN01 | crystal |
| 25M69DX1 | crown |
| 25M69DX1C | crown |
| 0D180NAA1 | case back gasket - case back gasket |
| DK11P | band - leather band |
| A140AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |