The watch manufactures attending this year's watch fair in Geneva presented us with some absolute horological masterpieces. Vacheron Constantin launched the world's most complicated watch with 63 complications (including the first Chinese perpetual calendar), Piaget the world's thinnest tourbillon watch and Rolex, at 322 grams, certainly the heaviest diver's watch ever launched. The watch with the deepest water resistance this year comes from Montblanc, actually…
