The Seiko 1F21-0K00 is a watch model based on the 1F21 movement.
Parts List
| 175W12JN01 | crystal - crystal |
| 30MA2NB1 | crown - crown |
| 30MA2NA1 | crown - crown |
| 0F160NA1S | case back gasket - case back gasket |
| D080BB | band - metal band |
| D080CB | band - band |
| D080FB | band - band |
| 1BF047L0BCA | others - hour hand |
| 2BF070L0BCA | others - minute hand |
| 3BA075F0BNG | others - second hand |
| 1BF045L0BDG | others - hour hand |
| 2BF065L0BDG | others - minute hand |
| 0351807 | others - winding stem |
| 82822440 | others - case ring |
| 1F210K0075A | others - case |
| 1F210K00 | others - case back |
| 1F210K007H | others - case |
| 1F210K0075 | others - case |
| 1F211E50XS19 | others - dial |
| 1F211E60XG14 | others - dial |
| 1F211G10XS14 | others - dial |
| 1F215 | others - machine code |
| T060BS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |