The Seiko 1F20-0C50 is a watch model based on the 1F20 movement.
Parts List
| 205N08JN01 | crystal |
| 25M02NA4 | crown - crown |
| 0H1900B01 | case back gasket - case back gasket |
| 0H1900B0 | case back gasket |
| BKJ34G | band |
| BKA24G | band |
| 82820780 | others - case ring |
| 1F200C50 | others - case back |
| 1F200C50CH | others - case |
| 1F201B00XB14 | others - dial |
| 1F201B00XG14 | others - dial |
| 1F201B00XS14 | others - dial |
| 1F201B10XS19 | others - dial |
| 1F201B20XS19 | others - dial |
| 1F209 | others - machine code |
| A140AS | others - push pin |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 09Y04NAM | others - minute hand |
| 08Y01AGM | others - minute hand |
| 09Y04NAH | others - hour hand |
| 08Y01AGH | others - hour hand |
Caliber 1F20
