The Seiko 1F21-0AB0 is a watch model based on the 1F21 movement.
Parts List
| 205A12SB0A | crystal - crystal |
| 6K38A0STW1 | crown - crown |
| 0F190BAD2 | case back gasket - case back gasket |
| D1R6CQ | band - band |
| D1R7CQ | band - band |
| D1R7CQ-BK00 | clasp - clasp |
| 1BH055L2BCL | others - hour hand |
| 2BH080L2BCL | others - minute hand |
| 3BA100F0BA5 | others - second hand |
| A100BS | others - push pin (for mb) |
| 1F210AC0XA13 | others - dial |
| 1F210AC0XA24 | others - dial |
| 1F213 | others - machine code |
| 0351807 | others - winding stem |
| AC004BAD1 | others - crown and stem gasket |
| 1F210AB001A | others - case |
| 82835280 | others - case ring |
| 1F210AB0 | others - case back |
| 1F210AB002A | others - case |