The result sees Ole Gunnar Solskjaer's men stay stuck in eighth on 25 points while the Hornets move level with Norwich at the bottom of the league.
After a first half short on quality and entertaining football, David de Gea's poor handling in between the sticks handed Watford their opener on 50 minutes.
The hosts had their second four minutes later, with Troy Deeney converting from the spot after Ismaila Sarr was brought down in the box.
So how did the two teams fare? See the gallery below for our player ratings.
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