The Seiko 1F20-1D70 is a watch model based on the 1F20 movement.
Parts List
| 130A07JN02 | crystal - crystal |
| 30MF8MS1 | crown - crown |
| 0F130BA1S | case back gasket - case back gasket |
| 49G7JZ-LK2 | band - link |
| 49G7JZ | band - band |
| 49G7JZ-BKK | clasp - buckle |
| 1CE035L0BDS | others - hour hand |
| 2CE050L2BDS | others - minute hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82813320 | others - case ring |
| 1F201D7079Z | others - case |
| 1F201D70 | others - case back |
| 1F202S58XS13 | others - dial |
| 1F202S58XZ23 | others - dial |
| 1F205 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
