The Seiko 1F20-6J40 is a watch model based on the 1F20 movement.
Parts List
| K02A58SN0A | crystal - crystal |
| 25M24TN1 | crown - crown |
| 0F160BA1S | case back gasket - case back gasket |
| 81937641 | clasp - clasp |
| 2CE057LABDG | others - minute hand |
| 1F206J4001A | others - case |
| 81503331 | others - screw for buckle (integral wat |
| 82842800 | others - case ring |
| 1F206J40 | others - case back |
| 1F202T80XA14 | others - dial |
| 1F203 | others - machine code |
| 0351807 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 1CE040L0BDG | others - hour hand |
Caliber 1F20
