The Seiko 5E21-6E80 is a watch model based on the 5E21 movement.
Parts List
| 260A02SN02 | crystal - crystal |
| 30MA2NA1 | crown - crown |
| 30MA2NS1 | crown - crown |
| 0F240NA1S | case back gasket - case back gasket |
| E065BB | band - band |
| E065CB | band - band |
| 2BF110LBBDG | others - minute hand |
| 3BA125F1BNG | others - second hand |
| 1BF075L0BDG | others - hour hand |
| 0351624 | others - winding stem |
| 81604259 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82814640 | others - case ring |
| 5E216E8075 | others - case |
| 5E216E80 | others - case back |
| 5E216E807L | others - case |
| 5E216E80T0 | others - case |
| 5E215 | others - machine code |
| 5E216F90X914 | others - dial |
| 5E216F90X924 | others - dial |
| 5E216G00XA14 | others - dial |
| EZ0035B01 | others - crown and stem gasket |