Altiplano Ultimate Manual WatchUltra thin hand wound watch in white gold and diamonds. Silvered off centred dial. Black alligator skin strap. Case and movement merged to give an ultra thin watch: just 3. 65 mm thick. Its secret lies in the unique design of its white gold case set with 78 diamonds, the back of which also serves as a bottom plate. Merging movement and case, this complex yet attractive architecture results in a reversed construction of the Manufacture Piaget 900P hand