The Seiko 2320-5420 is a watch model based on the 2320 movement.
Parts List
| RE1N54SN00 | crystal - crystal |
| 35N12NA1 | crown - crown |
| 35N12NS1 | crown |
| 0A1800N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| DK511 | band - band |
| DK512 | band - band |
| 05R02CSM | others - minute hand |
| 05R04CGH | others - hour hand |
| 05R04CSH | others - hour hand |
| 0354810 | others - winding stem |
| 2320067031N7 | others - dial |
| 232006703278 | others - dial |
| 23201 | others - machine code |
| A130BS | others - push pin |
| 2320542011 | others - case |
| 83119270 | others - case ring |
| 2320542026 | others - case |
| 05R02CGM | others - minute hand |
Caliber 2320
