The Seiko 1F20-5170 is a watch model based on the 1F20 movement.
Parts List
| 200A11SN01 | crystal - crystal |
| 25M44NA4 | crown |
| 25M44NA5 | crown - crown |
| 0F190NA1S | case back gasket - case back gasket |
| DB40BB | band - band |
| DB41BW | band - band |
| 89920155 | band - other |
| 2CC060A1BAA | others - minute hand |
| 1CC040A1BAA | others - hour hand |
| 1CF060A1BNJ | others - hour hand |
| 2CF085A1BDJ | others - minute hand |
| 0351807 | others - winding stem |
| 82822455 | others - case ring |
| 1F200420XA19 | others - dial |
| 1F200430XS14 | others - dial |
| 1F205 | others - machine code |
| 1F20517043A | others - case |
| 82820020 | others - case ring |
| 1F20517043B | others - case |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
