The Seiko 1F20-0140 is a watch model based on the 1F20 movement.
Parts List
| 180A19S30A | crystal - crystal |
| 6M30C9SNW0 | crown - crown |
| 0F120BA1S | case back gasket - case back gasket |
| 86566710 | crystal gasket |
| CA44AW | band - band |
| 2CE065L2BHS | others - minute hand |
| 82833850 | others - case ring |
| 0351807 | others - winding stem |
| 1F2001407EA | others - case |
| 1F200140 | others - case back |
| 1F200500XS29 | others - dial |
| 1F205 | others - machine code |
| A180AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 1CE045L2BHS | others - hour hand |
Caliber 1F20
