As an authentic watch Manufacture, Piaget designs, develops and builds all its mechanical movements in-house. Among the complication movements, the most difficult to master is the tourbillon regulator. For three solid years, watchmakers strove to create a movement reflecting Piaget’s unparallelled skills, and the multi-patented result is at once spectacular and beautiful to behold. Stemming from Piaget’s mastery of ultra-thin movements, but also from the company’s determination to consistently push the limits, Calibre 600P is the thinnest tourbillon movement in the world (a mere 3.5 millimetres). Its carriage is particularly sophisticated, composed of 42 miniscule parts, including three titanium bridges, and weighing in at just 0.2 grammes. The flying tourbillon, mounted on a single axis, is topped by the initial “P”, which adds to the complexity of the poising. To ensure maximum precision, the assembly and casing up of each 600P is entrusted to a single watchmaker.