The Seiko 8N21-6020 is a watch model based on the 8N21 movement.
Parts List
| 250A02S20B | crystal - crystal |
| 30M57NA1 | crown - crown |
| 0F220BAA3 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0H2400B01 | case back gasket - case back gasket |
| GB37B | band - band |
| 3AA125F1ANG | others - second hand |
| 2BB105A1BNG | others - minute hand |
| 1BB070A1BNG | others - hour hand |
| 0351388 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81181459 | others - bracelet fixing pipe |
| 82843590 | others - case ring |
| 8N21602061 | others - case |
| 8N216020 | others - case back |
| 8N216020XS24 | others - dial |
| 8N2163 | others - machine code |
Other models with the same movement