Double Balancier Convexe 'S2', 1 of 66 examples made in titanium. The Double Balancier Convexe takes the apex of chronometry competition dual balance calibre evolution and places it within the most adaptable, sporting case Greubel Forsey make, the Convexe. It is equipped with two 30-degree inclined balances computed through a spherical differential and remontoire d'egalité. The finishing standard applied to this highly technical is simply unrivaled. This is the ultimate example of sporting chronometry ever made, without exception.