The Seiko 1F21-5000 is a watch model based on the 1F21 movement.
Parts List
| ES1A59SN02 | crystal |
| 6M30B5NNG1 | crown - crown |
| 6M30B5NNG2 | crown - crown |
| 0F130BAA3 | case back gasket - case back gasket |
| HA24A | band - metal band |
| 81601469 | band - bracelet fixing pin |
| HA25A | band - metal band |
| 1BC040A1BNG | others - hour hand |
| 3BA075F1BNG | others - second hand |
| 0351807 | others - winding stem |
| 05T03NGM | others - minute hand |
| 81181459 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 1F210060XB14 | others - dial |
| 1F210060XS14 | others - dial |
| 1F215 | others - machine code |
| 1F215000 | others - case back |
| 1F21500075 | others - case |
| 1F2150007H | others - case |
| 82852810 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 2BC057A1BNG | others - minute hand |