The Seiko 7321-657A is a watch model based on the 7321 movement.
Parts List
| SABW42SN01 | crystal - crystal |
| 25M20NA3 | crown |
| 0A1800N01 | case back gasket |
| MK46E | band - band |
| 07TG6CGH | others - hour hand |
| 07TG6CGM | others - minute hand |
| 0354735 | others - winding stem |
| 07SC06DG | others - second hand |
| 82822360 | others - case ring |
| 7321657A75 | others - case |
| 7321657A | others - case back |
| 73212620XG14 | others - dial |
| 73219 | others - machine code |
| A120AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |