Girard-Perregaux
Girard-Perregaux's first tourbillon movement featuring three gold
bridges was patented in 1884 by one of the firm's founders, Constant
Girard. This construction is still representative of aesthetic and
technical ingenuity. At the Universal Exhibition in Paris in 1889, his
tourbillon with three gold bridges was awarded a gold medal and then
declared out of competition, as it was beyond match.