An extremely fine and rare 18k yellow gold perpetual calendar chronograph wristwatch with moon phases and original certificate with the box.

Reference 2499, widely acknowledged as one of the world's greatest watch models ever created, has undoubtedly greatly influenced the designs of many of the most renowned watchmakers. Introduced to the market in 1950 it replaced the legendary reference 1518, the world's first perpetual calendar wristwatch with chronograph made in series.
Over a period of 35 years, reference 2499 was made in four series in a total production of only 349 pieces, the majority cased in yellow gold. The rarity of this model becomes evident when considering that an annual average of only 9 watches left Patek Philippe's workshops.