The Swiss franc fell against the euro on Monday as Asian buyers bid up the single currency after Asian new year holidays, and extended a three-day losing streak against the dollar as robust US data buoyed sentiment. The franc rose around 0.4 percent against the euro compared to Friday's New York close, trading at 1.3029 francs per euro at 0745 GMT. The franc was 0.3 percent softer against the dollar at 0.9579 per dollar.