GENEVA, SWITZERLAND - JANUARY 19: In this handout image provided by Montblanc, Charlotte Casiraghi signs the guestbook during a dinner at the President Wilson Hotel as Montblanc announced Charlotte Casiraghi as its new global brand ambassador during the Salon International de la Haute Horlogerie on January 19, 2015 in Geneva, Switzerland. (Photo by Montblanc via Getty Images)
