The four Métiers d’art Altiplano Moonphase watches are a work of pure beauty and precision, a luxury of intricate details and technicality made to fit on a 36mm-wide watch. Their dials were brought to life after two years of development. On a translucent blue enamel sky created by master enameller Anita Porchet, Chinese constellations are represented by small white dots and precious stones. Because Piaget loves to play with surprising designs and original features, each Guardian, representing a cardinal point and associated with one of the four seasons and elements, gently appears at night fall.