The Seiko 2C20-5800 is a watch model based on the 2C20 movement.
Parts List
| ESTN67AN00 | crystal |
| 30N77NA1 | crown |
| 0G2070B01 | case back gasket |
| DZ0065B01 | case back gasket - button gasket |
| ZHA04G | band - leather band |
| ZHJ03G | band - leather band |
| 07R21CGM | hand - minute hand |
| 1DC047A1BAA | others - hour hand |
| 2DC070A1BAA | others - minute hand |
| 2C2010 | others - machine code |
| 2C201620XG14 | others - dial |
| 2C201620XS14 | others - dial |
| 2C201640XS19 | others - dial |
| 2C20580025 | others - case |
| 82715170 | others - case ring |
| A120AS | others - push pin |
| 1CA045A1BNG | others - hour hand |
| 07R03DGM | others - minute hand |
| 2CA065A1BDG | others - minute hand |
| 2CA070A1BDG | others - minute hand |
| 1CA047A1BNG | others - hour hand |
Caliber 2C20
