The Swiss franc tracked the euro higher against the dollar on Tuesday, both bouncing off fresh four-month lows notched up earlier in the session as swelling talk of Greece leaving the euro zone kept the pressure on the single currency. The franc rose 0.2 percent against the dollar compared to the New York close, trading at 0.9346 francs to the dollar. The franc was steady against the euro at 1.2011 francs per euro.