The Seiko 1F20-0K80 is a watch model based on the 1F20 movement.
Parts List
| 170A02SN02 | crystal - crystal (sapphire) |
| 30M56NA1 | crown - crown |
| 0F160NA1S | case back gasket - case back gasket |
| DK57E | band - leather band |
| DK58E | band - leather band |
| DK59E | band - leather band |
| 0351807 | others - winding stem |
| 1CD052A0BNG | others - hour hand |
| 1F200K80 | others - case back |
| 1F200K8075 | others - case |
| 1F202F30XA19 | others - dial |
| 1F202F30XA29 | others - dial |
| 1F202F30XA39 | others - dial |
| 1F205 | others - machine code |
| 82814380 | others - case ring |
| A100AS | others - push pin |
| 2CC070A0BNG | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
| 170A02SN02 | crystal - crystal (sapphire) |
| 30M56NA1 | crown - crown |
| 0F160NA1S | case back gasket - case back gasket |
| DK57E | band - leather band |
| DK58E | band - leather band |
| DK59E | band - leather band |
| 0351807 | others - winding stem |
| 1CD052A0BNG | others - hour hand |
| 1F200K80 | others - case back |
| 1F200K8075 | others - case |
| 1F202F30XA19 | others - dial |
| 1F202F30XA29 | others - dial |
| 1F202F30XA39 | others - dial |
| 1F205 | others - machine code |
| 82814380 | others - case ring |
| A100AS | others - push pin |
| 2CC070A0BNG | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
