The Seiko 2F70-5A20 is a watch model based on the 2F70 movement.
Parts List
| ESWN75SE20 | crystal - crystal |
| ESWN75SE30 | crystal - crystal |
| 25M57TS1 | crown - crown |
| 0C190NA11 | case back gasket - case back gasket |
| RI063 | band - band |
| RI064 | band - band |
| 05M033SM | others - minute hand |
| 05M293SH | others - hour hand |
| 05M03DZM | others - minute hand |
| 05M29DSH | others - hour hand |
| 82720990 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351356 | others - winding stem |
| 2F705A2001 | others - case |
| 2F705A20 | others - case back |
| 2F705A2002 | others - case |