In contrast, the 30-year old Roger-Vasselin, playing only his second tour final in 12 seasons since turning pro and still in quest of maiden title, appeared drained from the two back-to-back three-set matches.
He did, though, show some flashes of brilliance that had seen him move to 48 last season before ending the year at 52.
Wawrinka was at his aggressive best and having come through to the final without dropping a set, was obviously the fresher of the two and played a near-flawless tennis, especially in the second set to win his second Chennai Open title after 2011.
Roger-Vasselin played well enough in the first set to stay level with Wawrinka until 5-5 after surviving three break points in the third game. The Swiss, who never faced a break point, finally broke the Frenchman in the 10th game for 6-5 and then held serve to take the set in 57 minutes.
Wawrinka, a sparring partner of fellow Swiss Roger Federer, stepped up the pace in the second that he began with a break of serve in the first game and another in the fifth en route to a comprehensive win.
