The Seiko 1F20-0G20 is a watch model based on the 1F20 movement.
Parts List
| 160W16SR01 | crystal |
| 30MK0NA1 | crown |
| 0A1500N01 | case back gasket |
| 81180549 | band - bracelet fixing pipe |
| Z5404 | band - metal band |
| 06Y18DGH | others - hour hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 1F200G20 | others - case back |
| 1F200G209T | others - case |
| 1F201G40XS14 | others - dial |
| 1F209 | others - machine code |
| 82820240 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 06Y18DGM | others - minute hand |
Caliber 1F20
