The Seiko 2320-6620 is a watch model based on the 2320 movement.
Parts List
| SA5N46GN00 | crystal - crystal |
| 30M06NS1 | crown - crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0A1700N01 | case back gasket - case back gasket |
| KZ01A | band - band |
| 07R20DGH | others - hour hand |
| 07R20DGM | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 0354811 | others - winding stem |
| 232066202N | others - case |
| 82700980 | others - case ring |
| 23201 | others - machine code |
| 23203170XG14 | others - dial |
| 23203170XL14 | others - dial |
Caliber 2320
