Growth rates will slow a little next year, but only because of production constraints and the high comparative base, said Hayek, who manages three of Swatch Group's high-end brands — Breguet, Blancpain and Jaquet Droz. 

"For Breguet and Blancpain it will be difficult to maintain the high growth rates (of around 40 percent seen in the first half) because the last months of 2010 were already very strong and we cannot again increase production as much," Hayek told Reuters in an interview. 

"This has nothing to do with a slowdown in demand," he said, adding that even in crisis-shaken Europe the business was still seeing robust growth.  

"All my brands are positive in Spain that has been hard hit by the crisis. France and Germany are doing well," he said. 

Marc Hayek has been at the helm of Swatch Group's Blancpain brand since 2005 and also took over as president of Breguet and Jaquet Droz after the firm's founder, his grandfather Nicolas Hayek, died last year. 

Asked whether he was worried about the euro zone crisis, Hayek said: "Of course, I am concerned about what is going on. But I am not too worried for my brands. The economy is not just going to stop." 

In 2012 Hayek expects growth for his three brands to slow slightly. "Of course, we want to grow more but you cannot always sustain the same pace in production. We also need the staff and the production capacity to do that. The percentage increase might be a little lower than this year." 

Hayek said, however, that he had ambitious plans for Jaquet Droz, the smallest of Swatch Group's three high-end brands, which features watches with two overlapping subdials. 

"We currently make about 3,000 watches a year and hope to reach 4,000 pieces next year and 10,000 in about five years." 

The brand was bought by the world's largest watchmaker in 2001 to sit alongside Breguet, which makes about 30,000 timepieces a year, and Blancpain that produces around 20,000. 

Vontobel analyst Rene Weber said he estimated Jaquet Droz's annual sales at about 20 million Swiss francs ($22 million), compared with 550 million francs for Breguet and 150 million francs for Blancpain. 

Hayek said it was important for Jaquet Droz to reach a certain size in order to strengthen the brand. "The brand's founder, Pierre Jaquet Droz, was an important personality. The brand deserves to be more visible." 

One of the ways to raise the brand's profile is to pay tribute to its founder and his original android automatons — sophisticated dolls created at the end of the 18th century that were programmed to play tunes on the piano, draw different images or write a custom text coded on a wheel. 

The "Writer" automaton that was on display on Friday at the brand's headquarters in La Chaux-de-Fonds, the cradle of Swiss watchmaking in the Jura mountains, will be taken next week to China, the fastest-growing market for Swiss timepieces. 

"It is fantastic to show how rich our culture is. We are very happy to breathe new life into a part of our history," Hayek said.