Part of the Master Ultra Thin Collection, this complication watch captivates with the finesse of its polished pink gold case and the depth of color of its dial. An intense midnight blue that brings out every detail of the Master Ultra Thin Perpetual Calendar: moon phase at noon, applied hour-markers and JL logo, polished and satin-finished golden hands, sub-dials with a double opaline finish on the outside and azure on the inside... the sapphire crystal back of this perpetual calendar reveals its movement, Calibre 868, manufactured, decorated and assembled within the Manufacture, offering 70 hours of power reserve.