The Seiko 1F20-1B60 is a watch model based on the 1F20 movement.
Parts List
| 160A16SV0C | crystal - crystal |
| 160A16SV0D | crystal - crystal |
| 160A16SV0E | crystal - crystal |
| 160A16SV0F | crystal - crystal |
| 30MH2NA1 | crown |
| 0F140NA1S | case back gasket - case back gasket |
| C027BB | band - band |
| C021BB | band - band |
| C022BB | band - band |
| C023BB | band - band |
| 2CE060L0BDG | others - minute hand |
| 81190055 | others - bracelet fixing pipe |
| 1F201B6025 | others - case |
| 82821420 | others - case ring |
| 81606511 | others - bracelet fixing pin |
| 1F201B60 | others - case back |
| 1F201B6025A | others - case |
| 1F201B6025B | others - case |
| 1F201B6025C | others - case |
| 1F202H80XE14 | others - dial |
| 1F202H80XL14 | others - dial |
| 1F202H80XL24 | others - dial |
| 1F202J80XA14 | others - dial |
| 1F205 | others - machine code |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 1CE040L0BDG | others - hour hand |
Caliber 1F20
