The Seiko 1F20-0F39 is a watch model based on the 1F20 movement.
Parts List
| 210N08GN00 | crystal - crystal |
| 25M04NA1 | crown - crown |
| 0H1860N01 | case back gasket - case back gasket |
| 0H1860N0 | case back gasket |
| BJA54G | band |
| A130AS | others - push pin (for lb) |
| 1F200F39 | others - case back |
| 1F200F3925 | others - case |
| 1F201G60X919 | others - dial |
| 1F201G70XB14 | others - dial |
| 1F209 | others - machine code |
| 82820020 | others - case ring |
| 0351807 | others - winding stem |
| 08Y01CGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
| 09Y12DGM | others - minute hand |
| 09Y12NAH | others - hour hand |
| 08Y01AGH | others - hour hand |
Caliber 1F20
