"Very confident in the work that I've been putting in," the Texans quarterback said Tuesday at NRG Stadium. "Just stay on the track the strength and conditioning coaches have me on. Just taking it one step at a time."
He and the Texans began offseason conditioning work on Monday at NRG Stadium, and he met with the media on Tuesday.
Watson said "there's no timetable" on his return to form.
Watson was lost for the season in early November with a knee injury. He started in Weeks 2 through 8, and played the second half of the season opener.