Sotheby’s December watches sale: five rare pieces from AP, Patek Philippe, Cartier
December's Important Watches sale brings together a curated selection of virtually unknown examples from the golden age of watchmaking, each carrying the weight of decades in private collections and the distinction of rarity that defines collecting at the highest level.
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Five exceptional watches enter auction at Sotheby’s New York on 7 December: a 1926 Audemars Piguet Coussin Tortue with moon phase, a unique Patek Philippe Reference 3463, an Audemars Piguet Tank made for Bulgari around 1937, and two Cartier London pieces never before seen at public auction. Each is a private commission, a singular interpretation, a piece that shaped watchmaking at the highest level and then vanished into family collections for decades. The sale demonstrates a shift in collecting away from current desirability towards historical legitimacy and the specificity of provenance.
The Audemars Piguet Coussin Tortue was made for E. Guebelin and fitted with the John Shaeffer case, combining white and green gold in a large scale interpretation unmatched among known examples. The dial carries applied numerals against a silvered field; the moon phase disc reveals night sky in deep blue and gold. During the same era, only four calendar complications emerged in the tortue shape across the entire manufacture. This piece arrives with decades of private ownership documented through its provenance file.
The Patek Philippe Reference 3463 carries unique status: only one example is known to exist. The case and bracelet were entrusted to Ponti, Gennari & Cie., the Geneva firm whose work defined precision metalcraft. The dial achieves what craftsmen call a golden mirror finish, the faceted perimeter catching light in graduated steps. Such a dial demands handwork and restraint, qualities that distinguish the watches of that period from the complications favoured today.
The Audemars Piguet Tank created for Bulgari dates to circa 1937 and retains its original brick link bracelet. It is believed to be the sole example known. The Tank case represents geometric clarity executed at the moment when watchmakers and jewellers moved freely between both disciplines, understanding them as continuous expressions of form and proportion.
Two Cartier London pieces complete the group: an Octagonal on bracelet and a Tank Lugless Jumbo, each appearing at public auction for the first time. Cartier’s approach to the wristwatch drew from decorative arts applied to function, cases and dials executed with geometric refinement. The Tank without its usual lugs represents the experimental generosity of the London atelier at a moment when the company pushed conventions.
What distinguishes serious collecting is not the current fashion but the historical legitimacy of the piece and the clarity of its provenance. These five watches belonged to private families, rested in safes, were worn rarely and cared for with the attention reserved for significant objects. Their appearance at public auction marks the moment when private knowledge becomes shared knowledge. Sotheby’s Important Watches sale takes place on 7 December at the Breuer building on Madison Avenue. Registrations to bid are open at sothebys.com.
The sale reflects a discipline distinct from speculation: these watches have belonged to private families, rested in safes, been worn rarely and cared for with the attention reserved for significant objects. Their appearance at public auction marks a rarity itself, the moment when private knowledge becomes shared knowledge, when the single known example or the virtually unknown interpretation emerges into the light.
Sotheby’s Important Watches sale takes place on 7 December at the Breuer building on Madison Avenue in New York. Registration to bid is open.




Imagery courtesy of Sotheby's (@sothebyswatches).



