The Seiko 1F21-0C00 is a watch model based on the 1F21 movement.
Parts List
| 195W40SN02 | crystal |
| 30MA2NA1 | crown - crown |
| 0A1800B01 | case back gasket |
| HK31C | band - band |
| HK32C | band - leather band |
| 08SC14NG | others - second hand |
| 08T02AGH | others - hour hand |
| 08T02AGM | others - minute hand |
| 0351807 | others - winding stem |
| 1F210C0075 | others - case |
| 82820520 | others - case ring |
| 1F210C00 | others - case back |
| 1F210D40XG14 | others - dial |
| 1F210D50XS14 | others - dial |
| 1F219 | others - machine code |
| A120AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 08T24AGH | others - hour hand |
| 08T24AGM | others - minute hand |