The Seiko 7321-5880 is a watch model based on the 7321 movement.
Parts List
| K02N20SN01 | crystal - crystal |
| 30M64NA3 | crown - crown |
| 0H1610N01 | case back gasket |
| HK04B | band - band |
| 06T44DGM | others - minute hand |
| 06T44NGH | others - hour hand |
| 0354735 | others - winding stem |
| 07SC06DG | others - second hand |
| 732158804L | others - case |
| 82733440 | others - case ring |
| 73211430XG14 | others - dial |
| 73219 | others - machine code |
| A110AS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |