"Named after the 12th century Spanish order of knighthood whose heraldic cross appears as Patek Philippe's insignia, the first Calatrava was launched in 1932, and 70 years later each of the two dozen or so models that form this collection speaks of the refined power and elegance for which Patek Philippe is renowned. Established as the gentleman's fine wristwatch upon its introduction, the classic round dialed Calatrava is still the most popular of our styles today, for both men and women." - Patek Philippe