The Seiko 1F20-5C50 is a watch model based on the 1F20 movement.
Parts List
| K00W84SN01 | crystal |
| 40MC8NA1 | crown |
| 0A1600B01 | case back gasket |
| MK57D | band - leather band |
| T070BS | others - push pin |
| 05Y16AAH | others - hour hand |
| 0351807 | others - winding stem |
| 1F200F30XS19 | others - dial |
| 1F205C50 | others - case back |
| 1F205C5075 | others - case |
| 1F209 | others - machine code |
| 82814980 | others - case ring |
| EZ0035B01 | others - crown and stem gasket |
| 05Y16AAM | others - minute hand |
Caliber 1F20
