The Seiko 2320-5090 is a watch model based on the 2320 movement.
Parts List
| ES0N74SN00 | crystal - crystal |
| 30M06NA1 | crown - crown |
| 30M06NS1 | crown - crown |
| 30M32NA3 | crown - crown |
| 0A2050N01 | case back gasket - case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| MK341 | band - band |
| MK342 | band - band |
| 08R04CGH | others - hour hand |
| 08R04CGM | others - minute hand |
| 08R04CSH | others - hour hand |
| 08R04CSM | others - minute hand |
| 83119780 | others - case ring |
| 2320509026 | others - case |
| 232001403GB8 | others - dial |
| 232001403S47 | others - dial |
| 23201 | others - machine code |
| A140BS | others - push pin |
| 2320509011 | others - case |
| 0354811 | others - winding stem |
Caliber 2320
