The Seiko 1F21-0BF0 is a watch model based on the 1F21 movement.
Parts List
| BA2A98SB0A | crystal - crystal (sapphire) |
| 6K35C6SNW1 | crown - crown (3h) |
| 6K35C6SNZ1 | crown - crown |
| 6K35C6SNG1 | crown - crown (3h) |
| 0F170BAD2 | case back gasket - case back gasket |
| DA1B1JM | band - metal band |
| DA1B1JMLK | band - link |
| DA1B1LM | band - metal band |
| DA1B1LMLK | band - link |
| DA1B1RM | band - metal band |
| DA1B1RM-LK00 | band - link |
| DA1C2FC | band - leather band |
| DA1C3KC | band - leather band |
| H12J12SA07G | clasp - clasp |
| 2BA065S0BN1 | hand - minute hand |
| 2BA065S0BNG | hand - minute hand |
| 2BA065S0BNM | hand - minute hand |
| 2BA065S0BNP | hand - minute hand |
| 3EA065A0BCM | hand - second hand |
| 3EA065A0BDZ | hand - second hand |
| 1BA035A0BN1 | hand - hour hand |
| 1BA035A0BNM | hand - hour hand |
| 1BA035A0BNP | hand - hour hand |
| 3EA065A0BDS | others - second hand |
| 1BA035A0BNS | others - hour hand |
| 3EA065A0BDG | others - second hand |
| 1BA035A0BNG | others - hour hand |
| 2BA065S0BNS | others - minute hand |
| DA1B1JMEP | others - endpiece |
| S150BS | others - push pin |
| 81181459 | others - bracelet fixing pipe |
| 81190055 | others - bracelet fixing pipe |
| 81606899 | others - bracelet fixing pin |
| 81611159 | others - bracelet fixing pin |
| 0351807 | others - winding stem |
| AC004BAD1 | others - crown and stem gasket |
| 82846280 | others - case ring |
| 1F210BF0 | others - case back |
| 1F210BF001A | others - case |
| 1F210BF002A | others - case |
| 1F210BF003A | others - case |
| 1F210BF004A | others - case |
| 1F210BF005A | others - case |
| 1F210BF006A | others - case |
| 1F210CA0XS14 | others - dial |
| 1F210CA0XS23 | others - dial |
| 1F210CA0XY1Z | others - dial |
| 1F210CB0XA15 | others - dial |
| 1F210CB0XA25 | others - dial |
| 1F210CB0XA35 | others - dial |
| 1F210CC0XS15 | others - dial |
| 1F210CH0XS34 | others - dial |
| 1F213 | others - machine code |