The Seiko 1F20-6F30 is a watch model based on the 1F20 movement.
Parts List
| RE2A40SR02 | crystal - crystal |
| 6M45A4NNGA | crown - crown |
| 6M45A4ZNWA | crown - crown |
| 0F200NA1S | case back gasket - case back gasket |
| XX000 | band - band |
| 1CH032A0BNG | others - hour hand |
| 2CH050A0BNG | others - minute hand |
| 1CH032A0BNS | others - hour hand |
| 2CH050A0BNS | others - minute hand |
| 1F206F3076 | others - case |
| 82838640 | others - case ring |
| 1F206F30 | others - case back |
| 1F206F3095 | others - case |
| 1F202P00XB13 | others - dial |
| 1F202P00XG14 | others - dial |
| 1F202P00XG23 | others - dial |
| 1F202P00XS14 | others - dial |
| 1F202P00XS23 | others - dial |
| 1F205 | others - machine code |
| 0351807 | others - winding stem |
| AD006BA12 | others - crown gasket |
Caliber 1F20
