An exceptionally rare and highly important rose gold Patek Philippe timepiece made in 1953 (above) is expected to fetch up to $2.5 million at Christie's Important Watches sale in Geneva on November 15. The two crown world time wristwatch with 24 hour indication and blue enamel dial, Ref. 2523 is one of three pink gold Pateks in the sale, all of which are expected to top out at over $1 million, an extremely rare occurrence in a single sale. The other two are a perpetual calendar chronograph wristwatch with moon phases, Ref. 2499, manufactured in 1957, estimated at up to $1.25 million; and a perpetual calendar chronograph wristwatch with phases of the moon, Ref. 1518, manufactured in 1948, estimated at up to $1.03 million.

388 lots in total will be offered in two sessions during the historic sale and are expected to realize a combined total estimated in excess of $13 million.