This Audemars Piguet model houses selfwinding Manufacture calibre 5134 optimised with the collection’s signature openworked weight in 22-carat gold. A perpetual calendar automatically adjusts short months, and adds a day to February each leap year. If worn permanently, it will require an adjustment in 2100 only. This adjustment will consist in setting the date manually from February 28th to March 1st.
An astronomical watch par excellence, this perpetual calendar model features a dark blue aventurine dial and subdials recalling a star-lit sky. Aventurine glass was created in the 17th century thanks to a chance manipulation (“all’ avventura”) in a Murano glass factory when copper filings were dropped into cooling molten glass, creating a constellation of sparkling particles. Today, this glass is obtained by introducing black copper oxide and cobalt that give the blue colour to the glass. The pink gold case, hands and applied hour-markers enrich the deep blue sparkling constellation of the aventurine dial.