Audemars Piguet Ref. 25911OR.OO.D002CR.01 Edward Piguet Quantieme Perpetual

Drawing inspiration from the Renault tanks seen on the Western Front, Louis Cartier debuted the Tank wristwatch in 1918. Not to be outshone, and with its own storied heritage, Audemars Piguet introduced a comparable model in the 1920s—enhanced with a triple calendar and moon phase complication.

While often overshadowed by the iconic Royal Oak, this model warrants closer attention. Characterized by its elongated rectangular case, the Edward Piguet collection reflects the refined aesthetics of early 20th-century Art Deco and is widely regarded by collectors as a pinnacle of craftsmanship.

Among the most esteemed complications in horology, perpetual calendars symbolize technical mastery. Audemars Piguet’s Edward Piguet Quantième Perpétuel Ref. 25911, launched in late 1990s, exemplifies this excellence. At the time, it housed one of the world’s smallest and thinnest perpetual calendar movement—an enduring testament to the brand’s ingenuity.