Exports rose by a real 2.1 percent year-on-year in December to 15.776 billion Swiss francs ($17.01 billion). On a nominal basis, the increase was 7.2 percent, the Customs Office said in a statement on Tuesday.
The 1.20-per-euro cap had protected the export-reliant economy from the effects of a strong currency since 2011. The safe-haven franc has soared since the policy was dropped on Jan. 15, however, potentially pulling the rug from under Swiss exporters, who send most of their goods to the euro zone.
The rise in the franc against the euro has prompted some economists to slash their growth predictions for Switzerland's export-driven economy and forecast a recession for 2015.
Swiss exports to the euro zone, which account for 43 percent of the total, rose a nominal 7.0 percent in December, and sales to North America grew 32.8 percent, the Customs Office said.
Exports for 2014 rose 3.5 percent, also in nominal terms, hitting a record 208.3 billion francs.
Chemical and pharmaceutical sales, the country's biggest export category, rose 12.4 percent in nominal terms while watches fell by 2.5 percent.
Overall, Switzerland ran a merchandise trade surplus of 1.515 billion Swiss francs in December, down from 3.795 billion francs in the previous month.