The Seiko 1F21-0J00 is a watch model based on the 1F21 movement.
Parts List
| 190A06SZ0C | crystal |
| 30MJ6NA4 | crown - crown |
| 0F180NA1S | case back gasket - case back gasket |
| HB15B | band - metal band |
| 07SC06DG | others - second hand |
| 0351807 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82820520 | others - case ring |
| 1F210J00 | others - case back |
| 1F210J007Z | others - case |
| 1F211C50X914 | others - dial |
| 1F215 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 1BF055L0BDG | others - hour hand |
| 2BF080L0BDG | others - minute hand |