The Seiko 1F21-0C10 is a watch model based on the 1F21 movement.
Parts List
| 145W02SV01 | crystal - crystal |
| 30MA2NA1 | crown - crown |
| 0A1400B01 | case back gasket |
| HA22A | band - metal band |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82813280 | others - case ring |
| 1F210C10 | others - case back |
| 1F210C107N | others - case |
| 1F210C60XS19 | others - dial |
| 1F219 | others - machine code |
| 0351807 | others - winding stem |
| 06T10FGH | others - hour hand |
| 06T10FGM | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
| 07SC02NA | others - second hand |