Sam Vokes earned the Clarets a point, with a goal three minutes into stoppage time, which ended the scoring at 3-3.
Dyche, axed by Watford and replaced by Gianfranco Zola last summer, said he took no added pleasure from the result.
"No, not because it's at this club," he said.
"But I do take great satisfaction in the manner we performed and in the way we got a point after a ding-dong Championship clash.
"I thought the game fluctuated around mistakes to be honest. Charlie (Austin) is a player with goals in him, and I thought he could have had a couple more.
"But I'm not frustrated. Watford are a very good side. They've got every chance."