The Seiko 5E21-6C30 is a watch model based on the 5E21 movement.
Parts List
| 260A08SR02 | crystal - crystal |
| 30MJ6NA4 | crown - crown |
| 0F240NA1S | case back gasket - case back gasket |
| GB39B | band - metal band |
| 12ST06DA | others - second hand |
| 0351624 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82814640 | others - case ring |
| 5E215 | others - machine code |
| 5E216C10XG14 | others - dial |
| 5E216C30 | others - case back |
| 5E216C30T8 | others - case |
| 87020283 | others - back plate |
| EZ0035B01 | others - crown and stem gasket |
| 1BB080A0BAA | others - hour hand |
| 2BB115A0BCA | others - minute hand |