Yes, Tues Vevey street market, but different location. And most definitely worth the visit! It's been more than a few years (I have a friend who lives in Vevey, now Montreux, so visited 5x but not recently, but the Swiss are big on tradition so i'm guessing this is still correct info -haha- but do double check me).

On Saturday in Vevey it is larger and in the town square/parking lot. Tuesday mornings has many of the same vendors, maybe half the size, and they set up in front of various shops, along the cobblestone and pedestrian side streets winding around in the old town (very near the Sat location). There's also a Friday morning under the pergola just in off the quai in Montreux.

Thanks suze, it's definitely on my list :)