The world's largest watch and jewelry show is going to get even bigger. Rene Kamm, chief executive officer of MCH Swiss Exhibition, the parent firm of BaselWorld, announced a $287 million expansion project at the show this past April. For a number of years the show's management has divided it into clearly defined segments (watch halls, jewelry halls, equipment) and put exhibitors in the halls based on their market. That's changing. “As show organizers, we shall no longer be able to make a clear distinction between these two product categories, by accommodating them in different buildings,” said Kamm. “Our infrastructure will have to be adapted accordingly.” Plans call for a three-story complex, in which Hall 1 (watch exhibitors) will be extended and a third level added. Hall 3 will be rebuilt as a three-story building, and the new hall complexes will be linked by a roof ove