To commemorate the 40th anniversary of Earth Day, Christie’s will hold the Green Auction to raise awareness and funds. Proceeds will be used to advocate for the benefit of four leading not-for-profit environmental organizations: Oceana, Conservatism International, Natural Resources Defense Council and the Central Park Conservancy. The Swiss Haute Horlogerie Manufacture joins this collective action by donating 2 Girard-Perregaux timepieces of exception housing its iconic Tourbillon with three gold Bridges. "A Bid to Save the Earth" is slated for April 22 and boasts the participation of a panoply of cultural, business and environmental leaders from Hollywood stars Leonardo DiCaprio and Robert Redford to designer Vera Wang, activist Robert F. Kennedy and Queen Noor, the widow of Jordanian King Hussein.

ww.tc Tourbillon with three gold Bridges for Green Auction, platinum, No.1

New York highlighted in green on the city ring, 43mm Platinum case. Girard-Perregaux GP098G0 mechanical movement, manual winding with world time indication and tourbillon.

"It's a game-changer to have so many passionate and talented people link arms on behalf of the environment," said Susan Cohn Rockefeller, who is co-chairing the event with husband David Rockefeller Jr., philanthropist and environmental activist.

Among top stars signing on to the host committee include Hugh Jackman, Christina Aguilera, David Duchovny Harrison Ford, Ed Norton, Tobey Maguire, Brooke Shields, Salma Hayek, Sarah Jessica Parker, Cameron Diaz and Alec Baldwin.

Cat’s Eye Tourbillon with three gold Bridges

White gold case set with 84 baguette-cut diamonds ~2.12 cts. Girard-Perregaux GP9700.0A mechanical movement, manual winding.