The Arceau Pocket Astrolabe features exquisite plique-à-jour enameling. The astrolabe, from the Greek meaning “star-taker,” is an instrument for measuring the height of the sun or a star above the horizon, in particular to determine the time. Formed from circular rings placed inside one another, it represents the movement of the stars as the ancient astronomers imagined it. The circles of the astrolabe appear in a palette of blue, turquoise and indigo, punctuated by touches of silver. It contains the mechanical self-winding Caliber H1928.