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 1723-400-3A/00 watch features - 1
  • Blast Tourbillon 1723-400-3A/00 watch features - 2
  • Blast Tourbillon 1723-400-3A/00 watch features - 3
Blast Tourbillon is the first Ulysse Nardin Skeleton model featuring an automatic tourbillon and a new tiny yet powerful platinum micro-rotor, visible only from the front of the watch at 12 o’clock.

"Now, one could certainly argue that a tourbillon like this is hardly an everyday watch, but I think that depends on who's wearing it as much as anything else. And having a solid three days of reserve means you can comfortably switch it out every so often knowing that it won't need to be reset for a few days."

JON BUES / HODINKEE