Franck Muller's new Vanguard Skeleton hollow bridge is carefully designed to highlight the structure of the watch, men's wrist.

 Frank Muller's new Vanguard . The Skeleton Hollow Bridge has been carefully designed to highlight the watch's structure. The iconic Cintr? . Curvex diamond-encrusted case . More stable mechanical movement . With rubber and leather straps with the structural lines of its watch movement, Vanguard's . Skeleton is a masterpiece of contemporary watches.