The Seiko 1F20-6F80 is a watch model based on the 1F20 movement.
Parts List
| ES2A28JR02 | crystal - crystal |
| 30MF8NH1 | crown - crown |
| 30MF8MB1 | crown |
| 30MF8MS1 | crown - crown |
| 0F190NA1S | case back gasket - case back gasket |
| D154AQ-LK00 | band - link |
| D154AQ | band - band |
| D154CQ | band - band |
| D154FQ | band - band |
| 1CE030L2BDS | others - hour hand |
| 2CE047L0BDS | others - minute hand |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82839220 | others - case ring |
| 1F206F8025 | others - case |
| 1F206F80 | others - case back |
| 1F206F8029 | others - case |
| 1F206F802H | others - case |
| 1F206F80QX | others - case |
| 1F202P30XB13 | others - dial |
| 1F202P30XG24 | others - dial |
| 1F202P30XL13 | others - dial |
| 1F202P30XS14 | others - dial |
| 1F202P30XZ13 | others - dial |
| 1F205 | others - machine code |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 2CE047L0BDG | others - minute hand |
| 1CE030L2BDG | others - hour hand |
Caliber 1F20
