Head Coach Xisco Muñoz made four changes from last time out in the Premier League against Brighton, as debutant Moussa Sissoko came into face his former side only a few days after joining the Hornets.
The Frenchman’s name rang out from all sides of the stadium as he was called out in the team news.
It was also a first league start for Joshua King and a first Premier League appearance for Francisco Sierralta, who both retained their places from mid-week's cup match against Crystal Palace.
The interchangeable front three, seen frequently already this season, returned for the match with King, Emmanuel Dennis and Ismaïla Sarr exchanging positions regularly.
It was a lively start to proceedings as Watford broke away on a counter-attack bidding to make the first move. Dier was forced to block Kucka’s strike with a flying header, with the midfielder picked out by a roaming Sissoko.
Tottenham’s first chance of the game fell to Steven Bergwijn after Japhet Tanganga chipped the ball to the back post, but the Dutch international’s shot was blocked by Watford captain Craig Cathcart.
Bachmann made his first stop of the afternoon denying Tanganga from close range after a corner fell kindly to the defender.