The Patek Philippe Henry Graves Supercomplication (no. 198.385) is one of the most complicated mechanical pocket watches ever created. The 18-karat gold watch has 24 complications and was assembled by Patek Philippe. It was named after banker Henry Graves Jr who supposedly commissioned it out of his desire to outdo the Grande Complication pocketwatch of American automaker James Ward Packard. The two were both at the top of the watch collecting world, regularly commissioning innovative new timepieces.

The watch was sold at Sotheby's for a record-breaking $11,002,500 to an anonymous bidder in New York City on 2 December 1999. From 2001 to 2005, the Supercomplication was exhibited at the Patek Philippe Museum in Geneva.

On 10 July 2014, Sotheby's announced that in November 2014, the pocket watch would once again be auctioned. On 11 November 2014, the watch was sold in Geneva, Switzerland. The final price, bid by Aurel Bacs serving as proxy for an anonymous entity, reached 23,237,000 Swiss Francs, equivalent to US$24 million at the time. The sum established a new highest price for a timepiece, including both pocket watches and wrist watches.

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