The Hammers have a weekend off as they are no longer involved in the FA Cup so the squad have travelled to Dubai for a warm-weather training camp.
Cresswell picked up a slight hamstring problem in the 2-2 draw with West Brom but he insists he will be fit for the Premier League clash at Vicarage Road.
The left-back is confident that West Ham can get back to winning ways against the Hornets after conceding a late equaliser against the Baggies.
“It was disappointing, the game against West Brom, especially for me coming off injured and sitting there to watch the goal go in in the last minute,” he told the club’s official website. “It felt like a defeat and we fully deserved the three points.
“It would have been nice to come here knowing that we had that three points on the table and it’s disappointing, but as I say, that’s football and we have to forget about that and look forward to the Watford game now.
“It’s a chance for revenge and Watford have had an up and down season. But they’ve got some very good players and we know it’s going to be tough going away, but hopefully we can get the three points.
“I should be back towards the start of next week, when we get back from Dubai, and hopefully I can get a good week’s strengthening here with the physios and look ahead to next week.”
Newcastle have been linked with a shock move for former Sunderland goalkeeper Simon Mignolet during the summer.