• March 9, 2007

Citizen Watch Company of America, Inc. has signed 17-year-old tennis phenom Nicole Vaidisova, currently in the Top 10 on the Sony Ericsson WTA Tour, to its international ad push, called "Unstoppable."

Vaidisova will be in print ads in English, Spanish and French in the U.S. and Canada. Ads break in April in weekly magazines like People and Us Weekly, and monthly beauty, fashion and lifestyle magazines Glamour, Marie Claire, Latina and LouLou.

Lyndhurst, N.J.-based Citizen has sponsored the U.S. Open Tennis Championships for 15 years.