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Supercharged with classic Ulysse Nardin savoir-faire, Blast Tourbillon is an avatar of its time, a potent force of nature. This technological wonder made with rock-hard, masculine lines has ignited a flame that will send seismic shockwaves through the watchmaking world to its core...

Caliber UN-172

Caliber UN-172

Self-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 complex composition

  • Number of parts: 137
  • Number of jewels: 25
  • Total diameter (mm): 37

Impressive precision & longevity

  • Frequency (Hz): 2.5
  • Frequency (vph): 18000
  • Power Reserve (H): 72
  • Functions: Hours and minutes. Flying tourbillon.
  • Escapement: Silicon
  • Blast Tourbillon Sparkling 1720-400BLE-3A/01 watch features - 1
  • Blast Tourbillon Sparkling 1720-400BLE-3A/01 watch features - 2
  • Blast Tourbillon Sparkling 1720-400BLE-3A/01 watch features - 3
With a blast of 85 distinct and unique cuts of diamonds, this masterpiece is composed of a stunning 211 diamonds for a total weight of 13 carats.

"Honestly I think this is probably UN’s next big hit. Given all the features, the design, and the size, it could take on some of the big boys when it comes to ostentatious watches – and I mean that in the most loving sense."

JOHN BIGGS / WRIST WATCH REVIEW