The hooker was given a rapturous welcome by the Clermont-Auvergne supporters at the Stade Marcel-Michelin prior to the team's league clash with Montpellier on Saturday.
And Smit cannot wait to get back into action.
"To play in France is the best thing that could happen to me," he said. "I chose Clermont because it is a big club with a great infrastructure.
"I have already spoken to some of my team-mates, but I can't wait to discover more."
Fellow south African Marius Joubert has also moved to Clermont, the runners-up in last season's Top 14 championship.