The Seiko 1F20-0C70 is a watch model based on the 1F20 movement.
Parts List
| 160W10JN01 | crystal |
| 160W10JN | crystal |
| 30MA2NA1 | crown - crown |
| 30MJ6NA4 | crown - crown |
| 0A1500B01 | case back gasket |
| EZ0035B0 | case back gasket |
| NL | band |
| Z5374C | band |
| Z5374C-LKG | band - link |
| Z5374G-LKG | band - link |
| Z5374G | band |
| Z5374C-BK7G | clasp - clasp |
| Z5374G-BK7G | clasp - clasp |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81603979 | others - bracelet fixing pin |
| 1F200C70 | others - case back |
| 1F200C7075 | others - case |
| 1F200C7075A | others - case |
| 1F200C707N | others - case |
| 1F201C00XL19 | others - dial |
| 1F201C00XS19 | others - dial |
| 1F201C10XS14 | others - dial |
| 1F201C20XG14 | others - dial |
| 1F201C20XS14 | others - dial |
| 1F209 | others - machine code |
| 82820240 | others - case ring |
| 0351807 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 06Y43NGM | others - minute hand |
| 06Y43AGM | others - minute hand |
| 06Y43NGH | others - hour hand |
| 06Y40AGM | others - minute hand |
| 2CB065A0BNG | others - minute hand |
| 06Y42NGM | others - minute hand |
| 06Y43AGH | others - hour hand |
| 06Y40AGH | others - hour hand |
| 1CB045A2BNG | others - hour hand |
| 06Y42NGH | others - hour hand |
Caliber 1F20
