The Seiko 7N21-0030 is a watch model based on the 7N21 movement.
Parts List
| 250A29SN02 | crystal - crystal |
| 8M30A0NNG6 | crown |
| 0F220BA1S | case back gasket - case back gasket |
| D0S8AZ | band - band |
| D0S8CZ | band - band |
| 3BA125F1BNG | others - second hand |
| 1AB075A1BNG | others - hour hand |
| 0351890 | others - winding stem |
| 81190075 | others - bracelet fixing pipe |
| 81611239 | others - bracelet fixing pin |
| 82871850 | others - case ring |
| 7N21003079A | others - case |
| 7N210030 | others - case back |
| 7N210030T8A | others - case |
| 7N210 | others - machine code |
| 7N210050XS14 | others - dial |
| 7N210050XS24 | others - dial |
| 2AB105A1BNG | others - minute hand |
| AD006BA12 | others - crown gasket |
Other models with the same movement