24/07/2026
“La Grosse Pièce”: a collective masterpiece.
Born from the établissage network, “La Grosse Pièce” unites the expertise of multiple masters, from grande sonnerie to astronomical complications, across the Vallée de Joux and beyond.
First unveiled in 1920 and later rediscovered, it stands as a testament to collaboration, precision, and scale.
Discover the many hands that shaped this extraordinary timepiece: https://apchronicles.audemarspiguet.com/en/article/latelier-des-etablisseurs