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Inside Hublot’s Nyon Manufacture: How It Works With Gold, Ceramic, Sapphire and Rubber

Inside Hublot’s Nyon manufacture, a materials laboratory and foundry connect research with watchmaking. Magic Gold shows how the brand combines gold and boron carbide.
Estimate5–6 min Catalogued SpecialistWatchRanker Team
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Hublot’s Nyon manufacture brings materials research, watch design and production together. The clearest example is Magic Gold: Hublot’s account describes molten gold filling a porous boron-carbide structure, producing an 18K gold alloy that the company says resists scratching. Ceramic, synthetic sapphire and rubber show how the same “Art of Fusion” idea shapes both a watch’s construction and its appearance.

What happens inside Hublot’s Nyon manufacture?

Hublot says its manufacture has an in-house Metallurgy and Materials laboratory that works closely with the Research and Development department, as well as its own foundry. That arrangement connects the investigation of materials with the making of watch components. LVMH describes the Nyon site on Lake Geneva as 14,000 square meters; that is the group’s stated figure, not an independently verified measurement.

Factory reporting offers glimpses of how research translates into workshop processes. During a 2018 visit, Euronews reported that Hublot used a bespoke ultrasonic machine and diamond cutting to shape Magic Gold components. Those observations describe the factory at the time of the visit, not necessarily every current production method. A 2025 EL PAÍS report described watchmakers’ work in the workshop and said one watchmaker could assemble up to 25 pieces in a day; that is the publication’s report, not a current factory-wide output rate.

Hublot’s own materials and LVMH’s company profile describe the manufacture’s facilities and capabilities. They do not establish a full, independently audited account of every production line or the quantity of watches made.

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How does Hublot make Magic Gold?

Hublot describes Magic Gold as an 18K gold alloy and calls it scratch-proof. LVMH describes it as a fusion of pure gold and boron carbide. The most detailed public sequence in these sources appears in Hublot’s 2015 press release: boron-carbide powder is formed into a preform, hardened into a rigid but porous structure, and then filled with molten gold under high pressure. The gold penetrates the pores, combining the materials into the resulting composite.

The accounts differ in how they describe the gold input, so the process should not be reduced to a precise recipe or percentage. Hublot and LVMH say the material is produced in the brand’s own foundry. Hublot’s description of it as scratch-proof is a company performance claim, not a guarantee that a finished watch cannot be damaged under any conditions. Euronews quoted Hublot materials science engineer Luca Bianco in 2018 saying, “It took us two years to develop our ‘Magic Gold’ material. This is the first ever gold that doesn’t scratch.” That statement conveys the company’s claim; the report does not provide independent standardized test results.

In the 2018 factory report, the cutting stage offered a practical glimpse of the challenge: Euronews said the material was shaped using a bespoke ultrasonic machine and diamonds. The account helps explain why a distinctive material can require specialized component-making, but it should not be taken as a complete or necessarily current description of every machining step.

How does Hublot make colored ceramic?

Hublot says its high-tech ceramic is zirconium-based and sintered at very high temperatures. The material is used for selected watch cases and bezels, and the company lists colors including red, blue, green and Magic Ceramic. Color is part of the engineering challenge: the desired visual result has to survive the material-making process.

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LVMH identifies bright red ceramic as an R&D success in 2018. Euronews reported that Hublot had developed a way to retain bright pigment under lower heating conditions. These accounts describe the company’s achievement and explanation; they do not supply a complete ceramic recipe or detailed manufacturing sequence.

What does Hublot do with synthetic sapphire?

Hublot says its transparent synthetic sapphire is robust and designed to reveal and protect a watch’s movement. The material can make the case itself part of the display, rather than limiting movement visibility to the dial opening. Hublot lists transparent, blue, yellow and red sapphire variants, and LVMH shows assembly of a Big Bang sapphire case.

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The available descriptions establish sapphire’s role and examples, but do not provide a complete modern manufacturing sequence. They do not support specific claims here about crystal growth, cutting methods, production yield or cost.

Why is rubber part of Hublot’s material story?

Hublot’s origin story centers on its 1980 watch, which paired an 18K gold case with a rubber strap. The unconventional combination put a precious metal and a practical strap material together in one design. LVMH dates the adoption of the “Art of Fusion” as a cornerstone of the brand to 2004. In this context, rubber is not a foundry material; it represents the design decision to combine contrasting materials in a watch.

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How the materials differ

Material Documented role and properties What the sources establish
Magic Gold 18K gold alloy; Hublot claims scratch resistance. Used in watch components, including the Big Bang Reloaded Magic Gold 44 mm listed on Hublot’s materials page. Hublot’s 2015 account describes molten gold filling a porous boron-carbide preform. The detailed recipe and standardized comparative test results are not stated.
Ceramic Zirconium-based; sintered at high temperatures; used for selected cases and bezels. Hublot lists red, blue, green and Magic Ceramic. LVMH dates bright red ceramic as an R&D success in 2018. The full formulation and production sequence are not stated.
Synthetic sapphire Transparent, robust material used to display and protect the movement; also offered in blue, yellow and red variants. Hublot and LVMH document its use and show a Big Bang sapphire case assembly. A complete manufacturing sequence is not stated.
Rubber Strap material paired with an 18K gold case in Hublot’s 1980 origin story. The sources document the design combination and its place in the brand story, not a technical rubber-making process.

These materials serve different design and construction purposes. The sources do not provide standardized comparative durability tests, so they do not support ranking the four materials numerically.

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What the factory story says about Hublot’s design approach

The Nyon manufacture’s documented combination of a materials laboratory, R&D collaboration and foundry gives Hublot a way to connect material development with watch production. Magic Gold makes that link especially visible: the company’s described process combines gold with a porous ceramic structure, while later component cutting calls for specialized tools. Ceramic highlights color as a materials challenge; sapphire makes the movement visible through the case; rubber recalls the brand’s early pairing of contrasting materials.

Those examples explain the “Art of Fusion” through specific materials and uses, rather than proving that every Hublot watch is made from newly developed materials. For wider context, LVMH lists a 50-day power reserve for the MP-05 LaFerrari and 330 components for an Unico movement; those figures describe separate watchmaking achievements, not the output or capacity of the Nyon factory.

Sources and scope

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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