With the Swiss franc hitting record levels against the dollar, leading watch manufacturers are warning retailers that they will have to raise prices.At press time, the franc, traditionally viewed as a “reserve currency,” had jumped 25 percent since the ­beginning of 2011, according to Forex NewsNow.com. ­And Switzerland-based manufacturers, some of whom have instituted increases, say that retailers should brace for more. “We are anticipating a price increase,” says Stacie Orloff, president of Bell & Ross America, adding that her company hasn’t yet raised prices. “We haven’t made any decisions other than we will be anticipating an increase of 5 to 10 percent.”And Orloff thinks she’s not alone. “From what I hear, all my competitors have either risen prices already or are anticipating doing it again,” she says. “The franc is just out of control.”Jean-Cla