The Seiko 7321-5220 is a watch model based on the 7321 movement.
Parts List
| SA9N76SN00 | crystal - crystal |
| 25M02NA4 | crown - crown |
| 0H1720N01 | case back gasket - case back gasket |
| RI041 | band - band |
| 81921641 | clasp - clasp |
| 07X02NGH | others - hour hand |
| 06X02DGM | others - minute hand |
| 0354735 | others - winding stem |
| 7321522025 | others - case |
| 82714040 | others - case ring |
| 73210440XG14 | others - dial |
| 73219 | others - machine code |
| 07SC06DG | others - second hand |
| DZ0041B01 | others - crown and stem gasket |