The Seiko 2F70-5420 is a watch model based on the 2F70 movement.
Parts List
| ESMN01SN00 | crystal |
| 22N13DZ5C | crown |
| 22N13DZ5 | crown |
| 0C210BA11 | case back gasket |
| DK26Z | band - leather band |
| A150AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 06M15DGH | others - hour hand |
| 06M15DGM | others - minute hand |