The Seiko 1F20-5080 is a watch model based on the 1F20 movement.
Parts List
| K01A49JN02 | crystal - crystal |
| 6M30B9NNG0 | crown - crown |
| 0F120BA1S | case back gasket - case back gasket |
| 0F120BAA3 | case back gasket |
| D053AZ | band - band |
| D053BZ | band - metal band |
| 2CC045A1BNG | others - minute hand |
| 1CC030A1BNG | others - hour hand |
| 0351807 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 1F2050807EA | others - case |
| 82863650 | others - case ring |
| 81606679 | others - bracelet fixing pin |
| 1F205080 | others - case back |
| 1F200240XL14 | others - dial |
| 1F200240XS14 | others - dial |
| 1F205 | others - machine code |
| 1F20508075A | others - case |
Caliber 1F20
