First introduced in 1994, reference 5004 is distinguished by its complex perpetual calendar function with a split seconds complication. Widely considered one of Patek Philippe's most iconic models, it was soon replaced by reference 5204 which features an in-house movement. A top-of-the-line model, it was at the time incredibly difficult to be granted the privilege to own one.

While the model was cased in a variety of metals, pink gold examples with black dials are incredibly rare. In addition, this dial is confirmed by the Certificate of Origin, adding another element of collectibility. To date, no more than three examples in this configuration have appeared at auction and are also confirmed by the original certificate.

Fresh to the auction market, this watch is complete with its Patek Philippe Certificate of Origin dated February 25, 2011 confirming the black dial, additional numbered case back, leather portfolio, numbered slip case, wallet, fitted presentation box and outer packaging.