Tennis great Stefanie (“Steffi”) Graf is the newest “Ambassador of Elegance” of Longines, the Swiss fine watch brand. Graf—called “the greatest tennis player of all time,” by fellow tennis champion Billie Jean King and the “greatest female tennis player of the 20th century” by the Associated Press—joins her husband Andre Agassi, another tennis legend, who became a Longines Ambassador in 2007.

In her 17-year-career, the German-born Graf—who lives Las Vegas with her tennis pro husband, Andre Agassi, and their two children—won every possible title, among them 902 tournaments, including 22 “Grand Slams,” an Olympic medal, and No. 1 ranking in the Women’s Tennis Association for 377 weeks, still a record.

She retired in 1999 to devote time to her family and “Children for Tomorrow,” the charitable foundation she began to help children and families suffering from the traumas of war, exile, and violence.

Longines, which supports the Andre Agassi Charitable Foundation, will support hers, too. Walter von Känel, president of Longines, in the Nov. 20 announcement, said Graf’s “excellence, courage and commitment to serve others are values we also respect and promote.” Graf cited Longines’s “long reputation of quality and elegance,” and noted “we share many values and a strong commitment for children in need.”

JCK