The Seiko 1F20-0BB0 is a watch model based on the 1F20 movement.
Parts List
| K03A06JN02 | crystal - crystal (inorganic) |
| 6M30Y9SNS0 | crown - crown |
| 0F150BA1S | case back gasket - case back gasket |
| WBD4AW | band - band |
| WBD3AW | band - band |
| 1CH035S0BDS | others - hour hand |
| 2CH050S0BDS | others - minute hand |
| 82844040 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 0351807 | others - winding stem |
| 1F200BB001A | others - case |
| 1F200BH0XN15 | others - dial |
| 1F200BH0XS15 | others - dial |
| 1F203 | others - machine code |
| A100AS | others - push pin |
Caliber 1F20
