| General info : | | Jahan is the name of a Swiss jewelry and watches brand owned by Swissgem SA, located in Geneva, Switzerland.
The business extends itself over seven generations. | |
| Contact info | | | |
| Websites | | https://jahan.ch/ (jahan.ch/) | |
| Source : | | https://jahan.ch/traditions/legacy/ (jahan.ch/traditions/legacy/) | |
| Relations : | | Brand name used by : Swissgem SA | |
| Copied Wikipedia parts under license : | | | |