The Seiko 7321-5210 is a watch model based on the 7321 movement.
Parts List
| RE0W72SN00 | crystal - crystal |
| 30M52NA3 | crown |
| 0A1800N01 | case back gasket |
| 86567960 | crystal gasket - plastic gasket for crystal |
| DB06A | band - band |
| 05T04DGH | others - hour hand |
| 05T14DGM | others - minute hand |
| 82713220 | others - case ring |
| 73215210SF | others - case |
| 73210410XN14 | others - dial |
| 73219 | others - machine code |
| EZ0035B0A | others - crown and stem gasket |
| 07SC06DG | others - second hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 0354735 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |