Ulysse Nardin Marine Chronometer Torpilleur Steel — Blue Dial | Ref. 1183-310/43

The marine chronometer tradition that defines Ulysse Nardin's institutional identity is nowhere more explicitly invoked than in references that carry the Chronometer designation — pieces whose movement certification and display architecture derive directly from the precision timekeeping instruments that the Le Locle manufacture supplied to the world's naval fleets from 1846 onward. The Marine Chronometer Torpilleur in 42mm stainless steel with blue dial and Caliber UN-118 is a direct expression of this heritage: a power reserve indicator at 12 o'clock, a small seconds display at 6 o'clock, a round date window — the classical marine chronometer display hierarchy, rendered in a contemporary self-winding wrist-watch format with a screw-down security crown for aquatic reliability.

Caliber UN-118 brings Ulysse Nardin's silicon escapement technology to the Marine Chronometer Torpilleur — the lubrication-free, anti-magnetic operating principle that the InnoVision programme developed and that now defines the brand's entry-level manufacture movement specification. Approximately 60 hours of power reserve allows the watch to maintain accuracy across a multi-day winding cycle without manual intervention, while the power reserve indicator at 12 o'clock provides a visible warning before the mainspring's tension drops into the range where rate deviation becomes measurable. The transparent back allows examination of the calibre's architecture — a detail that Ulysse Nardin provides specifically for the collector who values the movement as part of the ownership experience.

The blue dial carries the Marine collection's oceanic identity with appropriate restraint: its deep, saturated field provides maximum contrast for the white-applied indices and hands, while the small seconds and power reserve displays are positioned with the considered hierarchy of a genuine instrument face. The blue leather strap with folding buckle provides the chromatic coherence that a matched dial-and-strap combination achieves, and its construction provides both wrist security and flexibility of daily wear. Water resistance to 50 metres, supported by the screw-down security crown, completes a specification that takes the Marine Chronometer name entirely seriously — a watch that honours its designation through technical discipline rather than mere nomenclature.