The Seiko 1F20-F020 is a watch model based on the 1F20 movement.
Parts List
| RE0PF5LN01 | crystal |
| RE0PF5LN | crystal |
| 30M78NA1 | crown |
| 0E195BA1F | case back gasket |
| 0E195BA1 | case back gasket |
| 8656F110 | crystal gasket |
| BNA74K | band |
| 0351807 | others - winding stem |
| 1F20F020 | others - case back |
| 1F20F02025A | others - case |
| 1F20F030XS14 | others - dial |
| 1F20F040XS14 | others - dial |
| 8270F140 | others - case ring |
| 8999F041 | others - endpiece screw |
| DZ0041B01 | others - crown and stem gasket |
| 2CD050ALBAD | others - minute hand |
| 1CD030ALBAD | others - hour hand |
Caliber 1F20
