The Seiko 1F20-0D39 is a watch model based on the 1F20 movement.
Parts List
| 190W28JN01 | crystal |
| 190W28JN | crystal |
| 30MG2NA1 | crown |
| 0A1800N01 | case back gasket |
| EZ0035B0 | case back gasket |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 07YA2CGM | others - minute hand |
| 07YA2ABH | others - hour hand |
Caliber 1F20
