The Seiko 2F70-031A is a watch model based on the 2F70 movement.
Parts List
| 160NA1SN01 | crystal |
| 160NASN01 | crystal - crystal |
| 25M63DX4 | crown |
| 25M63DE4 | crown |
| 0C165NA11 | case back gasket |
| WI180 | band - band |
| WI249 | band - band |
| 06M39JSHC | others - hour hand |
| 06M39JSMC | others - minute hand |
| 06M39JGH | others - hour hand |
| 06M39JGM | others - minute hand |
| 06M39JSH | others - hour hand |
| 06M39JSM | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351357 | others - winding stem |
| 82802930 | others - case ring |