The Patek Philippe reference 7140 is one of the manufacture's most elegant Ladies' Perpetual Calendar models, combining classical styling with one of Patek Philippe's most prestigious complications. Introduced in 2012 as the successor to the reference 4936, the 7140 is powered by the ultra-thin automatic Calibre 240 Q, renowned for its micro-rotor construction, exceptional finishing and enduring reliability. Its beautifully proportioned dial features the classic perpetual calendar display, with indications for the day, date, month, leap year, 24-hour display and moon phase, offering remarkable mechanical sophistication within a refined ladies' case. Produced in white gold and later rose gold, with a variety of dial colours and diamond-set bezels throughout its production, the 7140 has become one of Patek Philippe's most admired ladies' grand complications, celebrated for its graceful proportions, technical excellence and timeless elegance.