Ulysse Nardin Marine Chronometer Titanium — Black Roman Numeral Dial | Ref. 1183-126-3/42

Titanium combined with Roman numerals creates one of watchmaking's more unexpected material dialogues — the modernity of grade-5 aerospace alloy in productive tension with a typographic tradition that predates the mechanical clock by millennia. Ulysse Nardin navigates this tension with the authority of a manufacture that has been producing Marine Chronometers since 1846: the Roman numerals on this 43mm titanium case reference carry the full weight of the brand's naval instrument heritage, while the case material's advanced metallurgy reflects the Le Locle workshops' continuous engagement with materials science through the InnoVision programme.

Caliber UN-118 is the movement of record, its silicon escapement a direct product of the InnoVision research that has positioned Ulysse Nardin among the pioneers of advanced horological materials. The small seconds at 6 o'clock and power reserve indicator at 12 o'clock flank the date window in the characteristic Marine Chronometer dial layout — a configuration refined across decades of production to deliver maximum information with minimum visual effort. Sixty hours of power reserve and the lubrication-free silicon escapement combine to reduce the maintenance requirements of a watch that, in titanium, is equally suited to active professional use and formal occasions.

The black rubber strap is the practical companion for a titanium case — its compliance and grip characteristics ideally matched to the case material's weight and texture, providing the secure wrist retention that the Marine collection's active orientation demands. Water resistance to 100 metres is appropriate and credible for a Marine Chronometer. Combined titanium and stainless steel case construction, a detail visible at the case sides and caseback, delivers both material performance and assembly refinement. For the collector who wants the full Marine Chronometer complication architecture in a case material calibrated for active daily use, this reference is the straightforward answer.