The Seiko 2320-6580 is a watch model based on the 2320 movement.
Parts List
| ES3N72GM01 | crystal - crystal |
| 30M06NA1 | crown - crown |
| 30M06NS1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H1720N01 | case back gasket - case back gasket |
| KC06A | band - band |
| KC05A | band - band |
| 2320658026 | others - case |
| 232065802E | others - case |
| 0354811 | others - winding stem |
| 83119850 | others - case ring |
| 06R13DGH | others - hour hand |
| 23201 | others - machine code |
| 23203110X994 | others - dial |
| 23203110XR14 | others - dial |
| 23203110XS14 | others - dial |
| 06R13DGM | others - minute hand |
Caliber 2320
