The Seiko 1F20-6H50 is a watch model based on the 1F20 movement.
Parts List
| RE4A04JN02 | crystal - crystal |
| 30ML2NS1 | crown - crown |
| 0F200BA1S | case back gasket - case back gasket |
| D1G4AB | band - band |
| D1G5AB | band - band |
| D1G4AB-BK00 | clasp - clasp |
| D1G5AB-BK00 | clasp - clasp |
| 2CA045A1BNS | others - minute hand |
| 1CA030A1BNS | others - hour hand |
| 0351807 | others - winding stem |
| D1G5AB-BKPP | others - spring bar for buckle/clasp |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 1F206H5079 | others - case |
| 82840600 | others - case ring |
| 1F206H50 | others - case back |
| 1F202S70XS13 | others - dial |
| 1F202S70XZ13 | others - dial |
| 1F202S70XZ23 | others - dial |
| 1F205 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
