2005 Patek Philippe Perpetual Calendar Moonphase 18K RG (Ref. 5040R) W/ Certificate or Origin

“You never actually own a Patek Philippe. You merely look after it for the next generation.” Introduced in 1996, the Reference 5040 is a testament to that enduring legacy — a perfect embodiment of Patek Philippe’s mastery of the perpetual calendar complication.

Crafted in 18K rose gold, the 5040R distinguishes itself with its unconventional tonneau-shaped case — a bold yet refined departure from the traditional round silhouettes — lending it an instantly recognizable profile. At its heart beats the legendary Caliber 240/114, an ultra-thin automatic movement that also powered the iconic Reference 3940. This micro-rotor caliber not only allows for the watch’s elegant slimness, but also showcases Patek Philippe’s technical virtuosity with a perpetual calendar complication that tracks the date, day, month, leap year, moonphase, and even features a 24-hour indicator — all arranged in a perfectly balanced, highly legible dial layout.

The 5040R is a rare breed: a haute horlogerie classic that manages to be both distinctive and timeless. It's a piece designed not just for a lifetime, but for generations to come — a reminder that true craftsmanship never goes out of style.