The Seiko 1F20-6B80 is a watch model based on the 1F20 movement.
Parts List
| K00A38JC02 | crystal - crystal |
| 30MF8MB1 | crown |
| 30MF8MS1 | crown - crown |
| 0F130NA1S | case back gasket - case back gasket |
| D0C1AG | band - band |
| D0C1BG | band - band |
| 1CX040A0BNG | others - hour hand |
| 1CX040A0BNS | others - hour hand |
| 2CC050A0BNS | others - minute hand |
| 2CC050A0BNG | others - minute hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 1F206B8075 | others - case |
| 82813420 | others - case ring |
| 1F206B80 | others - case back |
| 1F206B807E | others - case |
| 1F202J90XS19 | others - dial |
| 1F202K00XS19 | others - dial |
| 1F205 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
