The Seiko 1F20-6B40 is a watch model based on the 1F20 movement.
Parts List
| K00A30SN02 | crystal - crystal |
| 30MA2NA1 | crown - crown |
| 0F140NA1S | case back gasket - case back gasket |
| EA58BB | band - band |
| EA59AB | band - band |
| 2CC055A0BNG | others - minute hand |
| 82836140 | others - case ring |
| 1F202J20XG14 | others - dial |
| 1F202J20XS24 | others - dial |
| 1F205 | others - machine code |
| A100AS | others - push pin |
| 1F206B4075 | others - case |
| 1F206B40 | others - case back |
| 1F206B407H | others - case |
| 0351807 | others - winding stem |
| 1CC040A0BNG | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
| K00A30SN02 | crystal - crystal |
| 30MA2NA1 | crown - crown |
| 0F140NA1S | case back gasket - case back gasket |
| EA58BB | band - band |
| EA59AB | band - band |
| 2CC055A0BNG | others - minute hand |
| 82836140 | others - case ring |
| 1F202J20XG14 | others - dial |
| 1F202J20XS24 | others - dial |
| 1F205 | others - machine code |
| A100AS | others - push pin |
| 1F206B4075 | others - case |
| 1F206B40 | others - case back |
| 1F206B407H | others - case |
| 0351807 | others - winding stem |
| 1CC040A0BNG | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
Caliber 1F20
