TAG Heuer - Monaco V4 Tourbillon, the evolution of the V4 revolution

In 2004, TAG Heuer changed the course of watchmaking by unveiling the MONACO V4 Concept Watch, the world’s first watch with belt drives, linear mass and ball bearings.

The V4 name derived from the V-shaped main plate on which the movement's four barrels are mounted: the 2-by-2 belt series on ball bearings are angled at +/-13 degrees, and look like the cylinders in a Formula One motor-racing engine.

The concept watch’s patented belt-driven transmission and linear mass represented nothing short of a complete rewriting of the fundamental principles of mechanical watchmaking.

Housed inside another revolution, the audacious, square-faced Monaco seen on Steve McQueen wrist in the 1971 race-film classic Le Mans, it won Best Design at the Grand Prix d’Horlogerie de Genève, Germany’s Red Dot Design Award, Wallpaper Magazine's "Watch of the Year” and Popular Science's "Best of What's New”.

It also reestablished TAG Heuer as the world leader of advanced mechanical movement design...

(more infos downloading press release)