The Seiko 9923-8020 is a watch model based on the 9923 movement.
Parts List
| 300WC6GA00 | crystal - crystal |
| 35M52NS2 | crown - crown |
| 35M52ND2 | crown |
| EZ2881N01 | case back gasket - case back gasket |
| 86109041 | crystal gasket - crystal fixing ring |
| DZ2975N04 | crystal gasket - crystal gasket |
| 86178990 | bezel gasket - plastic gasket for bezel |
| GB550 | band - band |
| 12C36CSM | others - minute hand |
| 12SC02ES | others - second hand |
| 12C28CSH | others - hour hand |
| 0354781 | others - winding stem |
| 83119460 | others - case ring |
| 81501069 | others - bracelet fixing pin |
| DB0060B01 | others - crown and stem gasket |
| 81600789 | others - bracelet fixing pin |
| 0801785 | others - date dial |
| 0884553 | others - holding ring for dial |
| 992380200157 | others - dial |
| 99239 | others - machine code |
| 9923802061 | others - case |
| 83349749 | others - bezel |
Caliber 9923
Other models with the same movement
| 9923-5000 |
| 9923-500A |
| 9923-5010 |
| 9923-501A |
| 9923-7000 |
| 9923-7010 |
| 9923-701A |
| 9923-7020 |
| 9923-702A |
| 9923-8000 |
| 9923-800A |
| 9923-800B |
| 9923-800C |
| 9923-8010 |
| 9923-801A |
| 9923-802A |
| 9923-8030 |
| 9923-8050 |
| 9923-8060 |