The unique model’s two-tone case emphasizes the architectural complexity of Code 11.59 by Audemars Piguet. Its 18-carat pink gold octagonal middle case subtly contrasts with the 18-carat white gold extra-thin bezel, lugs and caseback. Satin-brushed, bevelled and polished, the bezel, lugs and case present refined finishing techniques usually found on calibres. The caseback is engraved with “Unique Piece.”