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Ulysse Nardin Classico 675-00: The Quintessential Marine Chronometer

Watch Guides

2025-06-03
もくじ

The Dialogue Between Silicon Hairspring and Enamel: Ulysse Nardin Classico 675-00

Did You Know? The Nautical Revolution of Silicon Hairspring

The silicon hairspring technology in this timepiece originates from a major breakthrough in marine chronometry. While traditional hairsprings could accumulate up to 47 seconds of daily error due to temperature variations, the silicon hairspring in the 675-00 maintains an astonishing accuracy of ±1 second per day.

Artisanal Essence: The Fusion of Ancient and Modern Watchmaking

Silicon Hairspring Craftsmanship:

  • Utilizes aerospace-grade ion etching technology
  • Weighs merely 0.0002 grams
  • Withstands impacts up to 300G

Grand Feu Enamel:

  • Sourced from special mineral clay in Lyon, France
  • Undergoes 7 firings at 800°C
  • Each dial is a unique work of art


Key Q&A


Q: Does the silicon hairspring degrade over time?

A: Laboratory tests indicate a theoretical lifespan exceeding 300 years. After 20 years of practical application, it remains stable, with a 10-year manufacturer's warranty.


Q: Is the enamel dial fragile?

A: While highly scratch-resistant, it remains brittle. Avoid severe impacts. If damaged, repairs must be done in Switzerland at a cost of approximately $5,000.

Eternal Value

The Classico 675-00 perfectly embodies the essence of haute horlogerie: preserving traditional craftsmanship with cutting-edge technology. In an era of rapidly obsolete smart devices, it maintains an eternal charm that defies the passage of time.


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作者について

Alexander Lorentz
To me, a watch is never just a timekeeper—it’s a portable manifesto of human ingenuity. When I’m not dissecting balance wheels or debating the merits of Incabloc vs. Kif shock protection, you’ll find me hiking in the Jura Mountains, always with a vintage Tudor Prince on my wrist to keep the mountains in time.
貴金属及び宝石A類登録取引業者(登録番号:A-B-24-10-08216)
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