Ulysse Nardin Classico Jade Steel — White Mother-of-Pearl Dial | Ref. 8153-201B/60-01

Mother-of-pearl has graced the dials of fine watches since the earliest days of Swiss watchmaking, its iridescent surface shifting between white, cream, and pale rose as light catches it at different angles — a natural phenomenon no manufactured material has ever convincingly replicated. In the Classico Jade, Ulysse Nardin selects white mother-of-pearl as the canvas for a 37 mm lady's watch whose modest stature belies the depth of technical specification within. The Classico collection, rooted in Le Locle's tradition of refined dress watchmaking, provides the architectural framework: a clean, domed sapphire crystal over a simply composed dial, a polished steel case with softened lugs, and a leather strap that completes the ensemble with the understated confidence that characterises the finest classical timepieces.

Calibre UN-815 is the self-winding movement selected for the Jade, a calibre whose dimensions have been optimised for the 37 mm case without any concession to the performance standards Ulysse Nardin applies across its manufacture range. The movement carries the Ulysse Nardin performance certificate, a quality assurance programme that certifies rate accuracy, power reserve delivery, and long-term mechanical reliability through a regime of testing that exceeds industry standard requirements. Self-winding through a conventional rotor system, the UN-815 responds efficiently to the natural motions of daily wear, rarely if ever requiring manual correction for the wearer who keeps the watch on rotation. The integration of silicon technology in the movement's critical wear surfaces — consistent with the manufacture's InnoVision philosophy — extends service intervals and reduces the maintenance burden over the watch's operational life.

The sapphire crystal over the mother-of-pearl dial frames the natural iridescence of the surface material with optical clarity, maximising the play of light that makes this type of dial so compelling in person. A leather strap finished with a folding buckle ensures security without bulk, maintaining the slim profile appropriate to a lady's dress watch. Water resistance to 30 metres provides practical protection for everyday wear. The Classico Jade is a watch for the collector who understands that natural materials, properly selected and set within a technically accomplished case, produce a result that no amount of synthetic decoration can match.