The Seiko 1F20-5E20 is a watch model based on the 1F20 movement.
Parts List
| RE7N14SN01 | crystal |
| 35MK6NB1 | crown |
| 0H1800N01 | case back gasket - case back gasket |
| HK02C | band - leather band |
| 0351807 | others - winding stem |
| 05V14DBM | others - minute hand |
| 1F200K40XS19 | others - dial |
| 1F205E20 | others - case back |
| 1F205E2026 | others - case |
| 1F209 | others - machine code |
| 81331829 | others - click spring |
| 82820720 | others - case ring |
| 89910501 | others - shell cover unit |
| A140AS | others - push pin |
| 05V14NBH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 1F20
