New York: Charlize Theron will have to pay perhaps $20 million for wearing the wrong watch, a Manhattan judge has ruled.

Watchmaker Raymond Weil has already won summary judgement in a federal civil complaint that Theron broke their deal by failing to exclusively wear the pricey timekeeper in public. The company is seeking $20 million as damages, reports nypost.com.

Theron and her production company, Denver & Delilah Films Inc, were listed as defendants. The "Monster" star begged out of penalties, but US District Court Judge Colleen McMahon denied her plea.

"It is obvious that Theron cannot be dismissed... she was not an unwary agent," McMahon wrote, noting that Theron's initials appeared 10 times on the 10-page contract the actress broke.

Damages will be awarded at a jury trial.