The Seiko 1F21-0AP0 is a watch model based on the 1F21 movement.
Parts List
| RE7A78HB0A | crystal - crystal (inorganic) |
| RE7A78HB0B | crystal - crystal (inorganic) |
| RE7A78HB0C | crystal - crystal (inorganic) |
| RE7A78HB0D | crystal - crystal (inorganic) |
| 6K40C4SNG2 | crown - crown |
| 6K40C4SNW1 | crown - crown (3h) |
| 0F170BAD2 | case back gasket - case back gasket |
| DFM7AW | band - band |
| DFP5AW | band - band |
| D293FG | band - metal band |
| DFP8AW | band - band |
| DFM8AW | band - band |
| DFM9AW | band - band |
| D293FG-LK00 | band - link |
| D293HG | band - metal band |
| D293HG-LK00 | band - link |
| DFM1AW | band - leather band |
| DFM2AW | band - leather band |
| DFM3AW | band - leather band |
| DFP4AW | band - leather band |
| DFP7AW | band - leather band |
| DFP7AW-BK00 | clasp - clasp |
| DFP4AW-BK00 | clasp - clasp |
| DFM3AW-BK00 | clasp - clasp |
| DFM2AW-BK00 | clasp - clasp |
| DFM1AW-BK00 | clasp - clasp |
| D293HG-BK00 | clasp - clasp |
| D293FG-BK00 | clasp - clasp |
| 1BX035S0BNP | others - hour hand |
| 2BX052S0BNP | others - minute hand |
| 3BA075F0BNP | others - second hand |
| 3BA075F0BNS | others - second hand |
| 1BX035S0BDS | others - hour hand |
| 2BX052S0BDS | others - minute hand |
| 1BX035S0BCL | others - hour hand |
| 2BX052S0BCL | others - minute hand |
| 82845380 | others - case ring |
| 1F210AP0 | others - case back |
| 1F210AP002A | others - case |
| 1F210AP003A | others - case |
| AC004BAD1 | others - crown and stem gasket |
| 1F210AP001A | others - case |
| 0351807 | others - winding stem |
| 1F210AP005A | others - case |
| 1F210AP004A | others - case |
| 1F210BC0XS19 | others - dial |
| 1F210BC0XS29 | others - dial |
| 1F210BC0XZ19 | others - dial |
| 1F215 | others - machine code |
| D293FG-LKPC | others - pipe for link |
| D293FG-LKPN | others - pin for link |
| D293HG-LKPN | others - pin for link |