The Seiko 1F20-6C40 is a watch model based on the 1F20 movement.
Parts List
| ES0A40JR02 | crystal - crystal |
| 35M1TMB1 | crown - crown |
| 0E160NA1S | case back gasket - case back gasket |
| D0E6FZ | band - band |
| 1CH032A0BNG | others - hour hand |
| 2CH050A0BNG | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82836500 | others - case ring |
| 1F206C4025 | others - case |
| 1F206C40 | others - case back |
| 1F202K50XS14 | others - dial |
| 1F205 | others - machine code |
Caliber 1F20
