There are hours, and then there are Watches. 1953 Patek Philippe Ref. The 2523 Heures Universelles belongs firmly to the second category, and is so rare that its appearance at the Philips exhibition Geneva Watch Auction: 23rd This May should be an event in the watch industry. The reference to be auctioned is an 18k yellow gold model with a South American dial coated with a polychrome cloisonné enamel – one of only two known to exist in yellow gold and one of only three decorated with a polychrome enamel map of South America. It was last seen at auction in 1988, the only time this reference has been offered. The 2523 variant has arrived on the block so far.
The Heures Universelles, or World Time, wristwatch was the invention of Louis Cottier, a Geneva watchmaker who developed his mechanism in the early 1930s to solve what was a real challenge at the time: how to display Sir Sandford Fleming’s 24 time zones—which contrary to popular belief were not codified by the International Prime Meridian Conference of 1884—simultaneously in a single watch. Cottier’s answer was a system of rotating city rings that allowed the wearer to read the time anywhere on Earth with a single glance. Patek Philippe immediately recognized the utility of this world time mechanism, and by 1937, it had partnered with Cottier to produce its prototype Heures Universelles, the rectangular ref. 515 HU (only three or four were made) and the ref. 96 HU (only two made).
Ref. Decades later, No. 2523 was the second generation of world-time displays serially produced by Patek Philippe, succeeding the Ref. 1415. “Series-produced” is of course a term that requires context: across all versions – yellow gold, rose gold, white gold and precious enameled versions – only approximately 29 examples were ever manufactured. Three geographical map designs are known throughout the reference. 2523 dial variants: Eurasia, North America, South America; The latter is believed to be the rarest of the three.
Auction records for this reference indicate that the watch offered in Geneva will beat its estimate. Cloisonne enamel “Silk Road” ref. 2523 achieved $7.8 million in 2021, the highest price ever achieved at auction for a yellow gold wristwatch. A signed blue enamel example of Gobi Milan sold for $8.97 million at Christie’s Hong Kong in 2019, setting a record at the time for the most expensive watch ever sold in Asia.
Collectors who are serious about watchmaking and its history, or simply about owning one of the finest and rarest pieces produced in the 20th century, will no doubt be watching this auction closely. Opportunities like this don’t come often, and this hour in particular may never come again.
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