The Seiko 2C20-590B is a watch model based on the 2C20 movement.
Parts List
| RE9N79JN00 | crystal |
| 30N79NA5 | crown |
| 0G1940B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| BKA05G | band - leather band |
| ZKA09G | band - leather band |
| 06L15DGH | others - hour hand |
| 06V07DGM | others - minute hand |
| 2C2010 | others - machine code |
| 2C201950XB14 | others - dial |
| 2C20590B25A | others - case |
| 82718370 | others - case ring |
| A140AS | others - push pin |
| 1CE040L0BDG | others - hour hand |
Caliber 2C20
