Reference 5071 most notably combines exquisite gem-setting with haute horlogerie. Housing the famous Lemania based caliber CH 27-70, the model, along with sister reference 5070, was the first modern chronograph-only wristwatch that Patek Philippe produced. Reference 5070 and 5071 were the very last chronograph wristwatches to house a Lemania based movement. Its successor, the 5170, houses a movement that is entirely made in-house by Patek Philippe.

Reference 5071 was only available to Patek Philippe's most exclusive clients and produced upon special request. It was incredibly time consuming for the firm to find such well-matched diamonds, and setting the baguette stones was extremely laborious. As a result, very few examples were manufactured, and the reference is very rare. In fact, according to research, only three examples have appeared on the auction market thus far, truly signifying its rarity, with the present watch being previously unknown.

This masterpiece is set with 118 baguette-cut diamonds to the bezel, band, dial and throughout the lugs, weighing approximately 11.55 carats in total. The dial is furthermore set with 9 brilliant diamonds set in chatons, which gleam against the black background.

The white gold case measures 42 millimeters, giving the watch incredible presence on the wrist. It is among Patek Philippe's largest wristwatches ever produced. Its rarity, coupled with fastidious diamond-setting makes this watch among the firm's most impressive and eye catching chronograph-only wristwatches.

The present watch is furthermore accompanied by its accessories such as Certificate of Origin, leather wallet, product literature and fitted presentation box, further enhancing its collectibility.