Thank you for the comments. They were purchased at Carmina on Gran Via. About 3 hours after my arrival.
I had been thinking about that style, but not in shell. I'm not a shell fanatic (yet). They had this model in 11.5 (i'm a 12), and he said in shell you want to go half size smaller.
Fit was great and it was last one I think, was reduced from 550€ to 300€.