The Seiko 1F20-0F80 is a watch model based on the 1F20 movement.
Parts List
| 190W42SN01 | crystal |
| 30MA2NA1 | crown - crown |
| 0A1800B01 | case back gasket |
| HK51C | band - leather band |
| HK52C | band - leather band |
| HK53C | band - leather band |
| HK54C | band - leather band |
| 0351807 | others - winding stem |
| 1CX047S0BDG | others - hour hand |
| 82822240 | others - case ring |
| 1F200F80 | others - case back |
| 1F200F8075 | others - case |
| 1F201K00X914 | others - dial |
| 1F205 | others - machine code |
| 87020460 | others - back plate |
| A110AS | others - push pin |
| 2CX077S0BDG | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
