A Moroccan man accused of robbing a fashion designer of his diamond-encrusted £137,000 watch says he was threatened with being “set on fire” if he did not take part in the crime, a court has heard. Ali Eldahouzze, 22, and Abdel El Habchi, 30, are accused of being part of a plot to target entrepreneur Catalin Botezatu after he had dinner with his assistant and a friend in Mayfair, central London. Mr Botezatu had been smoking a cigar on the terrac…