Phillips in Association with Bacs & Russo is delighted to announce the sale of a Patek Philippe reference 2523/1 world time wristwatch in rose gold, to be auctioned during The Geneva Watch Auction Twelve on November 6th and 7th, 2020. The star lot of Phillips’ upcoming double-evening auction, this extremely rare double-crowned world time model with guilloché dial is one of only four known.