Without the slightest technical concession, the Girard-Perregaux Manufactory’s legendary Tourbillon with Three Gold Bridges is housed in a 31 mm diameter case. A real tour de force for the most delicate of wrists, this model is fitted with a GP 9700 movement and is available in yellow, pink or white 750 (18K) gold or platinum. There is also a jewellery version, with 48 trapeze-cut diamonds on the bezel and 40 diamonds on the horns, totalling 5 carats.