Ulysse Nardin Executive Skeleton Tourbillon Titanium — Open Dial | Ref. 1713-139/43

The flying tourbillon is horology's most theatrical complication — a rotating cage that defeats the gravitational position errors affecting a pocket watch escapement, elevated long ago from functional necessity to the ultimate expression of the watchmaker's art. In the Executive Skeleton Tourbillon, Ulysse Nardin frames this mechanism within a fully skeletonised architecture that removes every gram of dial material not essential to structural or aesthetic purpose, leaving the movement itself as the sole spectacle.

Caliber UN-171 is a manual-winding movement of exceptional ambition. Its 170-hour power reserve — more than seven days of continuous operation — is among the most generous specifications in the flying tourbillon category, achieved through a barrel architecture that stores mechanical energy with extraordinary efficiency. The ceramic bezel of the 43mm titanium case introduces a tribological durability that complements the exotic movement materials within; the screw-down security crown protects the movement's 30-metre water resistance rating. The combination of titanium and ceramic minimises wrist weight, ensuring the piece carries with comfort despite its 43mm footprint.

The Executive collection has always positioned Ulysse Nardin at the intersection of boardroom authority and mechanical virtuosity — an identity that the Skeleton Tourbillon fulfils with complete conviction. The leather strap with carbon structure folding buckle delivers a material consistency narrative that runs from dial to clasp. At $32,310, this is Ulysse Nardin's proposition to the serious complication collector: a flying tourbillon from one of Switzerland's most technically credentialed manufacturers, presented with the transparency of a fully open dial.