The auction season has once again started with Antiquorum's New York auction in September, however its with the Geneva auctions of Oct and Nov that we usually see the rather extraordinary and rare pieces which are offered for sale.
However the New York Christie's and Sotheby's sales to take place in New York this month will have for auction 3 extremely rare and interesting pieces
Christies Oct 17
Lot 97 is as rare as you can get Ref 4293: a triple date moonphase minute repeater with a 38mm case in rose gold made in 1957. According to Vacheron Constantin two if these models were to be made but only one left the manufactiry making this a unique piece!! This is the very first time I'm seeing this reference, the estimate is $250,000-$500,000 (!!)
Sotheby's Oct 19
Lot 53: Ref 43060/2 . This model which uses the same case as the Audubon series launched in 1997 was made in 10 pieces in 2001 with a enamel dial with Turkish inspired motifs. Estimate $28,000-$32,000