The Seiko 1F20-5C9A is a watch model based on the 1F20 movement.
Parts List
| K04N22JN01 | crystal |
| K04N22JN | crystal |
| 30M98NA1 | crown |
| 0E140NA1S | case back gasket - case back gasket |
| 0E140NA1 | case back gasket |
| M5091T | band - band |
| M5091T-BK3G | clasp - buckle |
| 1F200G88XS19 | others - dial |
| 1F209 | others - machine code |
| B080AS | others - push pin |
| 82820600 | others - case ring |
| 1F205C9A25Z | others - case |
| 1F205C9A | others - case back |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 03Y04FGM | others - minute hand |
| 03Y10AGH | others - hour hand |
Caliber 1F20
