The Seiko 1F20-0A89 is a watch model based on the 1F20 movement.
Parts List
| 190W26SN01 | crystal |
| 190W26SN | crystal |
| 25M18NA1 | crown |
| 0A1800N01 | case back gasket |
| EZ0035B0 | case back gasket |
| B5557G | band |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 07Y42DGM | others - minute hand |
| 07Y42AJH | others - hour hand |
Caliber 1F20
