SAM Vokes was denied a stoppage time winner by Manuel Almunia, leaving Burnley to settle for a point at home to manager Sean Dyche's old club Watford.
The Clarets trailed after only 10 minutes, when Lee Grant was beaten by Nathaniel Chalobah's low volley from the edge of the box.
But after getting back on level terms through Charlie Austin's 28th minute penalty Dyche's men ended the first half strongly.
Grant made a smart double save from Troy Deeney early in the second half to stop Watford from getting the upper hand again.
Then after Joel Ekstrand rattled the crossbar with a dipping 30-yard effort he had to be alert to thwart Deeney again from the follow-up.
But Almunia was kept the busier of the two goalkeepers, proving a match for a number of other Austin attempts.
The Clarets kicked on again after Keith Treacy marked his return to the first-team set up with only his second appearance this season, coming off the bench for the effective Danny Ings, who made his first start of the campaign.
Junior Stanislas wasted a couple of openings, before Almunia somehow kept out stoppage time substitute Vokes' header from a corner at the death.