One of the few genuine Swiss 'manufactures', Girard Perregaux has supplied leading Swiss brands such as Cartier, Vacheron Constantin, Piaget and Ebel with its thin calibers 3000 and 3100. When making their own watches the company often uses their own calibers though they will also use a painstakingly reworked A. Schild or ETA movement. Girard-Perregaux has proven themselves to be a master of technically demanding pieces. The company holds multiple Tourbillion calibers, including the famed Three Gold Bridges originally created by Constant Girard-Perregaux in 1889. The longstanding relationship between Ferrari and Girard-Perregaux recently came to an end, but the company has channeled its love of racing chronographs to the new Laureato EVO3 and its passion for the race to the America's Cup and the BMW Oracle Team. Sea Hawks featuring the BMW Oracle logo as well as extremely rare Tourbillion models of the Sea Hawk have been produced in celebration of the union.