ZURICH/BERLIN, Nov 23 (Reuters) - The Swiss blue-chip SMI was seen opening 0.1 percent higher at 8,792 points on Friday, according to premarket indications by bank Julius Baer .
Here are some of the main factors that may affect Swiss stocks:
The company said it had received European Union approval for its Luxturna gene therepy to restore sight to people with a rare inherited retinal disease.
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* Barry Callebaut said Renata Jacobs, Nathalie Albin-Jacobs and Nicolas Jacobs have each agreed to a lock-up on the shares for period of 120 days until March 15, 2019, after their previously announced sale of 2.7 percent of the comapny's share capital.
* Comet Group named Thomas Wenzel as leader of its X-Ray Systems division and a member of its managing board.
Reporting by Zurich newsroom and Berlin Speed Desk
