The Seiko 1F21-0A10 is a watch model based on the 1F21 movement.
Parts List
| 160N12GN00 | crystal |
| 30M98NA1 | crown |
| 0H1610N01 | case back gasket |
| HC10A | band - other band |
| HC11A | band - band |
| DA3Y1JA | band - metal band |
| DA3Y1KA | band - metal band |
| 06TA0FGH | others - hour hand |
| 06TA0FGM | others - minute hand |
| 06TA0NGH | others - hour hand |
| 06TA0NGM | others - minute hand |
| 07SC02NG | others - second hand |
| 0351807 | others - winding stem |
| 1F210A30XG14 | others - dial |
| 1F210A40XS19 | others - dial |
| 1F219 | others - machine code |
| 1F210A1026 | others - case |
| 82812400 | others - case ring |
| 1F210A10 | others - case back |
| 1F210A102N | others - case |
| DZ0041B01 | others - crown and stem gasket |