The Seiko 7N83-0021 is a watch model based on the 7N83 movement.
Parts List
| 190P01LN03 | crystal - crystal (inorganic) |
| 8M35A7NNG0 | crown - crown |
| 0F160BAA5 | case back gasket - case back gasket |
| 86173930 | crystal gasket - plastic gasket for crystal |
| 86170190 | bezel gasket - plastic gasket for bezel |
| G5176L | band |
| G5176K-LKG | band - link |
| G5176L-LKG | band - link |
| G5176K | band - band |
| G5176L-BK4G | clasp - clasp |
| G5176K-BK4G | clasp - buckle |
| 3BA125F1BNG | others - second hand |
| 0351892 | others - winding stem |
| 81180249 | others - bracelet fixing pipe |
| 81611299 | others - bracelet fixing pin |
| 82850990 | others - case ring |
| 82352851 | others - bezel |
| 7N83002175 | others - case |
| 7N830021 | others - case back |
| 0878625 | others - date dial |
| 7N8300217L | others - case |
| 7N830041XS14 | others - dial |
| 7N830051XS14 | others - dial |
| 2AB077SABDG | others - minute hand |
| 2AC080AMBAA | others - minute hand |
| AD006BA12 | others - crown gasket |
| 1AC055AMBAA | others - hour hand |
| 1AB055SCBDG | others - hour hand |