This is the world’s most complicated watch which costs $2.6 Million. Very complex engineering. Made by the eminent family-owned watchmaking company and truely one of the world’s most elaborate wristwatches. Patek Philippe Grandmaster Chime is user friendly, easy to operate and secure. The first double-faced wristwatch presented by Patek Philippe is probably the most beautiful watch ever. Only 6 watches of this kind will be made.