The Seiko 2C20-5830 is a watch model based on the 2C20 movement.
Parts List
| SAEN25AN00 | crystal |
| 32N09NA1 | crown |
| 0G1940B01 | case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| B5208G | band - metal band |
| BJA22G | band - leather band |
| BJJ24G | band - leather band |
| B5208G-BK5G | clasp - clasp |
| 05R05DGM | hand - minute hand |
| 06R05DGH | hand - hour hand |
| 06R27DGH | hand - hour hand |
| 06R33DGM | hand - minute hand |
| 06R39DGM | hand - minute hand |
| 1DE040LABDG | others - hour hand |
| A130AS | others - push pin (for lb) |
| 06R11DGH | others - hour hand |
| 2C2010 | others - machine code |
| 2C201700XG14 | others - dial |
| 2C201710XB14 | others - dial |
| 2C201720XG14 | others - dial |
| 2C201720XN14 | others - dial |
| 2C201720XY14 | others - dial |
| 2C20583025 | others - case |
| 82715230 | others - case ring |
| 06R11DGM | others - minute hand |
Caliber 2C20
