The Seiko 2320-520A is a watch model based on the 2320 movement.
Parts List
| SA2N22GN00 | crystal - crystal |
| 30M06NA1 | crown - crown |
| 30M06NS1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0A1700N01 | case back gasket - case back gasket |
| HI013 | band - band |
| HI012 | band - band |
| 86259901 | clasp - clasp |
| 86259902 | clasp - clasp |
| 06R06DGH | others - hour hand |
| 06R06DSH | others - hour hand |
| 06R08DGM | others - minute hand |
| 06R08DSM | others - minute hand |
| 0354811 | others - winding stem |
| 83119640 | others - case ring |
| 2320520A26 | others - case |
| 2320520A2E | others - case |
| 2320030031N3 | others - dial |
| 2320030032Q4 | others - dial |
| 23201 | others - machine code |
Caliber 2320
