The Seiko 7321-0510 is a watch model based on the 7321 movement.
Parts List
| 185W12SR01 | crystal |
| 25M44NA4 | crown |
| 0A1800N01 | case back gasket |
| 0H1720N01 | case back gasket - case back gasket |
| DB44A | band - metal band |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 0354735 | others - winding stem |
| 82731680 | others - case ring |
| 73210510 | others - case back |
| 73210510SF | others - case |
| 73212390X914 | others - dial |
| 73212390XS14 | others - dial |
| 73219 | others - machine code |
| 07SC06DG | others - second hand |
| EZ0035B01 | others - crown and stem gasket |
| 07TE0DGM | others - minute hand |
| 07TE0DGH | others - hour hand |