The Seiko 1F21-0H10 is a watch model based on the 1F21 movement.
Parts List
| 200W36SK01 | crystal |
| 25MA2NJ4 | crown |
| 0F180NA1S | case back gasket - case back gasket |
| WNA35 | band - leather band |
| 81610129 | band - bracelet fixing pin |
| 81180603 | band - bracelet fixing pipe |
| 81503029 | others - screw |
| 0351807 | others - winding stem |
| 86503903 | others - decorative plate |
| 08SC653S | others - second hand |
| 82821060 | others - case ring |
| 1F210H10 | others - case back |
| 1F210H1071 | others - case |
| 1F211B40XS13 | others - dial |
| 1F219 | others - machine code |
| 08TH8DSH | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
| 08TH8DSM | others - minute hand |