Ulysse Nardin Marine Chronometer Lady Rose Gold — Diamond-Set Mother-of-Pearl Dial | Ref. 1182-160/490

Fifty-seven diamonds set into a white mother-of-pearl dial represent an act of jewellery-making ambition that Ulysse Nardin applies here without sacrificing the horological substance that distinguishes a manufacture watch from a purely decorative object. The Marine Chronometer Lady in 39mm 18K rose gold (5N) is, by any measure, the most luxurious expression of the Marine Ladies line — a watch in which the 5N rose gold alloy's warm, copper-enriched tone, the mother-of-pearl's organic iridescence, and the diamond setting's brilliant refractive geometry create a material hierarchy of considerable sophistication. The screw-down security crown — an engineering detail borrowed directly from the professional Marine Chronometer — ensures the case's 100-metre water resistance rating is maintained in practical wear.

Caliber UN-118 is the same movement that powers Ulysse Nardin's professional and sports references, and its presence here makes an important statement about the Marine Lady's identity: this is not a ladies' watch whose case material and dial treatment substitute for mechanical substance, but a watch whose feminine aesthetic expression is built on exactly the same calibre foundation as the men's Marine Chronometer. The silicon escapement operates without lubrication, the 60-hour power reserve accommodates multi-day wear cycles, and the oversized seconds hand — a Marine Chronometer signature — sweeps the dial with precision-instrument authority. At $22,750, Caliber UN-118 in 5N rose gold with 57-diamond dial represents a value proposition that the informed collector will find compelling.

The white mother-of-pearl dial's 57-diamond setting follows the dial's hour-marker positions, each stone individually set in the rose gold surface and assessed for alignment and brilliance. No two mother-of-pearl panels are identical; the organic grain of each example is unique, ensuring that every Marine Chronometer Lady emerges from the Ulysse Nardin manufacture as an individual object. The leather strap with folding buckle provides the secure, refined wrist presence appropriate to a watch of this material standing. Water resistance to 100 metres — meaningfully exceeding the requirements of daily formal wear — confirms that the Marine Lady's professional heritage is not merely aesthetic but genuinely structural.