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Come aboard a flagship of inventive watchmaking with visible, elegant mechanics that feature a play on movement, combining technical versatility and the raw emotion of the ocean waves.

Caliber UN-631

Manual-winding

Classic or unconventional, simple or complex, for men or women, our collection of calibers is one of the most extensive and diverse in the industry. It is based on a culture of innovation, independence and quality that has made Ulysse Nardin one of the most advanced brands in creative watchmaking.

A complexe composition

Number of parts: 504

Number of jewels: 53

Total diameter (mm): 37

An impressive precision & longevity

Frequency (Hz): 3

Frequency (vph): 21600

Power Reserve (H): 80

Functions: Hours and minutes. Power reserve with anchor and windlass linked to the winding mechanism. Moon phase indication. Indicator of tidal coefficients and volumes. Flying tourbillon.

Escapement: Steel / ruby