Mineral Whirlwind - unique piece - AVENTURINE dial

€1.149,00 EUR

 

 

 

Case:

 

 

Mirror-polished 904L steel case, 41 mm diameter.

Domed, rounded 904L steel bezel, precisely machined and integrated with the sapphire crystal.

Full manual polishing on the entire case.

 

 

Strap:

 

 

Gray Alcantara strap, tone-on-tone topstitching, calfskin lining.

Faceted pin buckle.

Quick-release spring bar system for tool-free changing.

Lug width: 22 mm.

Available options: Alcantara (other colors), leather, alligator, FKM rubber.

 

 

Crystal:

 

 

Single-dome sapphire crystal, multi-layer anti-reflective coating.

 

 

Hands:

 

 

Hand-polished, Breguet-style hands.

Hour/minute indication.

 

 

Dial:

 

 

Dial made of genuine aventurine stone, cut and polished.

Each dial is unique, featuring mineral patterns specific to crystalline formation: bands, undulations, and natural strata that are impossible to reproduce.

Varnished finish.

Opening at 6 o'clock with steel ring for the tourbillon.

 

 

Caseback:

 

 

Ultra-slim transparent sapphire caseback, offering a full view of the movement.

Polished finish on the case band.

 

 

Crown:

 

 

Onion-style crown in polished 904L steel.

Push/pull system.

Double gasket on tube and crown.

 

 

Movement:

 

 

Hand-wound flying tourbillon.

Monobloc architecture with cantilevered tourbillon cage (no upper bridge).

Lever escapement, high-frequency escape wheel.

Variable inertia balance, balance spring relubricated according to N.A Timekeeping+ protocol.

Assembled, reliability-tested, calibrated, and regulated in Paris.

Internal controls: 11 points, including amplitude, iso-amplitude, beat error, residual torque performance, and thermal stability.

Adjusted to 6 positions.

Frequency: 28,800 A/h.

Power reserve: ~50 h.

 

 

Water Resistance:

 

 

Certified 50 meters (5 ATM).

Each unit undergoes a water resistance test with a provided report.

 

 

Warranty:

 

 

3-year international warranty.

Full N.A Timekeeping set including:

– Box + papers

– Personalized warranty card

– Chronometric test certificate (6 positions)

– Water resistance report

– Engraved plate with number and unique piece mention

3 interest-free payments available - Contact us to take advantage of this offer!

What does your N.A TIMEKEEPING watch come with?

  • Leather box containing your N.A TIMEKEEPING watch
  • Additional leather travel pouch.
  • Genuine leather card holder containing your 3-year warranty card with serial number and reference.
  • 3-year warranty card with your watch's serial number and reference
  • Chronometric report on 5 positions printed on paper.
  • Greiner Leak checker PRIME© waterproofness report printed on paper.
  • Tools to adjust the size of your watch depending on the type of strap you have (screwdriver/fork)
  • Detailed user manual on the operation of your movement
  • N.A TIMEKEEPING microfiber cloth
  • Certificate of Authenticity for SEIKO movement, origin JAPAN

Motion graphics option

Decoration worthy of the greatest watchmakers, meticulously handcrafted and visible on the back of your case.

discover the tk-1 movement decoration

Assembled in Paris by a true watchmaker

A Parisian workshop open to the public, which, unlike some, has nothing to hide. Each watch is assembled according to the strictest standards, following rigorous processes and controls. Our commitment to the quality of the timepieces that leave our workshop is as strong as our passion for sharing our expertise with you

Our expertise

Got a question? We've got the answer!

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