The Seiko 7321-5730 is a watch model based on the 7321 movement.
Parts List
| SA7W48SJ01 | crystal |
| SA7W48SJ02 | crystal - crystal |
| 30M52NA3 | crown |
| 0A2400N01 | case back gasket - case back gasket |
| LK08C | band - leather band |
| LK09C | band - band |
| 73215730SB | others - case |
| 82732460 | others - case ring |
| 73211200XB14 | others - dial |
| 73211210XG14 | others - dial |
| 7321573058 | others - case |
| 73219 | others - machine code |
| A180BS | others - push pin |
| 0354735 | others - winding stem |
| 08T10DGH | others - hour hand |
| 08T10DGM | others - minute hand |
| EZ0035B01 | others - crown and stem gasket |
| 08SC22D1 | others - second hand |