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ATELIER DE CHRONOMÉTRIE Unveils the AdC30 ONLY WATCH: A Unique Horological Masterpiece for a Noble Cause

AdC30 for a Noble Cause

We continue our coverage of Only Watch 2023 - the charitable auction held this November in Monaco.

Barcelona-based Atelier de Chronométrie, known for its dedication to the art of artisanal watchmaking, introduces the AdC30 ONLY WATCH. This exceptional timepiece is a one-of-a-kind creation, specially designed and handcrafted for the prestigious Only Watch biennial charity auction 2023, with all proceeds contributing to research into Duchenne muscular dystrophy.


Technical Specifications Details
Caliber M284
Winding Manual winding
Jewels 19
Power Reserve 38 hours
Balance Frequency 18,000 b.h.p.
Bridges Arcap and rose gold plated
Regulator Swan neck regulator
Wheels Rhodium plated
Hairspring Blued hairspring with Breguet overcoil
Finishes Handmade frosting, anglage, perlage, polished countersinks, straight graining, étirage des flancs, black polish, beveled screws, hand-engraving on bridges with signature and number “30”
Dial Sandwich dial with applied Arabic numerals and indexes, engine-turned sub-seconds
Hands Handmade 18K rose gold leaf hands (minutes and hours) and blued steel seconds leaf hand
Case Handmade 37mm 18K grey gold case with stepped lugs, concave bezel, and case back
Crown Handmade 18K grey gold crown
Buckle Handmade 18K grey gold buckle
Straps Two leather straps
Glass Sapphire glass front and back

Design Excellence:

The AdC30 ONLY WATCH is a testament to craftsmanship and innovation. Encased in 18K grey gold, the round case features intricate stepped lugs that have been meticulously designed to create a larger, stepped shape. This delicate case complements a striking two-tone sandwich dial, a unique execution handcrafted in Barcelona for the first time. The dial showcases 18K rose gold and blued steel leaf hands, adding a touch of elegance to the timepiece.

In-House Innovation:

This exceptional watch boasts the in-house caliber M284, a new movement from Atelier de Chronométrie. What sets it apart is its special handmade frosting decoration, a departure from the regular M284 version. The design evokes the timeless elegance of 1940s-era calibers, with exquisite details like handmade frosting, anglage, perlage, polished countersinks, straight graining, étirage des flancs, black polish, and beveled screws.

A Unique Creation:

Every aspect of the AdC30 ONLY WATCH, from the case to the movement and dial, has been exclusively crafted for the Only Watch auction 2023. Atelier de Chronométrie's commitment to creating unique timepieces aligns perfectly with the spirit of this charitable event. This extraordinary creation will leave an indelible mark in the world of horology.

About Atelier de Chronométrie:

Atelier de Chronométrie, founded in Barcelona in 2014, embodies a romantic vision of high-end watchmaking. Led by Santiago Martínez, a passionate team is dedicated to reviving the essence of artisanal watchmaking, focusing on manual processes and timeless designs inspired by the 30s and 40s of the 20th century. Atelier de Chronométrie aims to offer collectors a truly unique experience by creating one-of-a-kind timepieces, pushing the boundaries of high-end independent watchmaking.


Explore the exclusive world of horological craftsmanship and philanthropy through the remarkable timepieces of Only Watch 2023. Lot 1 showcases the exquisite craftsmanship of Andersen Genève; delve into its intricate details. For a touch of elegance, discover Lot 2, the Chronodate Gold Angelus. Lot 3, the Armin Strom Gravity Equal Force, promises groundbreaking innovation. And, adding a touch of purity, don't miss Lot 4, the Artya Purity Moissanite. Explore these exceptional timepieces and their creators while supporting a noble cause at Only Watch, where every bid makes a difference.

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