The Seiko 1F20-0J10 is a watch model based on the 1F20 movement.
Parts List
| 190W26SN01 | crystal |
| 25M18NA1 | crown |
| 0A1800N01 | case back gasket |
| DB26B | band - band |
| 07Y19DGH | others - hour hand |
| 07Y19DGM | others - minute hand |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 82814520 | others - case ring |
| 1F200J10SA | others - case |
| 1F200J10 | others - case back |
| 1F202C60X914 | others - dial |
| 1F202C70XS19 | others - dial |
| 1F205 | others - machine code |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 07Y44CGM | others - minute hand |
| 07Y34AGH | others - hour hand |
Caliber 1F20
