The Seiko 2320-5489 is a watch model based on the 2320 movement.
Parts List
| SA2N74GN00 | crystal |
| 30M04NA5 | crown |
| 30M10EE1 | crown |
| 0Z1900N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| SA2N74GN00 | crystal |
| 30M04NA5 | crown |
| 30M10EE1 | crown |
| 0Z1900N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
Caliber 2320
