LeCoultre Master Jaeger-LeCoultre series 5086420: The Master UItra TourbiIIon tourbillon has an elegant appearance, the rhythmic beauty of the 982 mechanical movement, which operates at a frequency of 21,600 vibrations per movement, with a diameter of 43 mm and a thickness of 12.8 mm, and the precision of the movement and the essence of technical research make this watch a coveted wrist treasure.