The Seiko 2F70-6400 is a watch model based on the 2F70 movement.
Parts List
| SA0A67SN01 | crystal |
| 25M45DE4 | crown - crown |
| 25M45DE4C | crown |
| 0D180NAA1 | case back gasket - case back gasket |
| 05M33JGM | others - minute hand |
| WI332 | others - other band |
| DZ0040B01 | others - crown and stem gasket |