Hublot is a Swiss luxury watchmaker founded in Geneva in 1980 by Carlo Crocco, whose original and defining innovation was the marriage of an 18-karat gold case with a natural vulcanised rubber strap — a combination then considered almost heretical in the conservative world of haute horlogerie. That founding gesture of material contrast became the philosophical cornerstone of everything that followed: what the manufacture calls the Art of Fusion, the deliberate and technically ambitious combination of materials drawn from different worlds — precious metals, industrial ceramics, carbon fibre, titanium, and coloured gemstones — within a single timepiece. Since 2008, Hublot has been part of the LVMH Moët Hennessy Louis Vuitton group, which has provided both the capital and the distribution infrastructure to position the brand at the apex of contemporary gem-set watchmaking.

Origins and the Fusion Philosophy

Crocco's original 1980 design, known simply as the Classic, was named after the French word for porthole, a reference to the circular case shape and the visible screws on the bezel that evoked industrial maritime hardware. The watch sold modestly through the 1980s and 1990s, appreciated by a niche clientele who valued the ergonomic comfort of the rubber strap and the quietly unconventional aesthetic. The brand's transformation into a global force came under Jean-Claude Biver, who became chief executive in 2004 and articulated the Art of Fusion as a formal design and engineering programme. Biver's strategy was to treat material innovation not as a stylistic flourish but as a genuine technical discipline, investing in in-house research and development to create proprietary alloys, composite structures, and surface treatments that could not be sourced from external suppliers.

The Big Bang Collection

Launched in 2005, the Big Bang is the collection most closely associated with Hublot's contemporary identity and the one most relevant to the world of gem-set horology. The original Big Bang drew on three distinct design references — the Royal Oak by Audemars Piguet, the Royal Oak Offshore, and the Hublot Classic — to produce a 44-millimetre case with a prominent H-shaped bezel secured by six screws, a multi-layered dial architecture, and a rubber strap integrated directly into the case. The design was immediately awarded the prize for Best Design at the Grand Prix d'Horlogerie de Genève in 2005.

The bezel of the Big Bang rapidly became the primary canvas for gem-setting. Hublot's workshops produce versions in which the bezel is entirely pavé-set with brilliant-cut diamonds, and further variants deploy coloured stones — blue sapphires, rubies, pink sapphires, tsavorite garnets, and emeralds — either as uniform single-colour pavé or in polychrome arrangements that follow the colour of the underlying case material. Dials, too, are set with stones, and certain limited editions feature dials composed entirely of gemstone material: slices of meteorite, malachite, or lapis lazuli serving as the dial plate, with applied indices in gem-set gold. The integration of coloured gemstones into the Big Bang is not merely decorative; the engineering challenge of setting stones into a case that must withstand the mechanical stresses of a high-complication movement, maintain water resistance, and accommodate the thermal expansion of mixed materials is considerable, and Hublot's setters work with case components machined to tolerances measured in hundredths of a millimetre.

Magic Gold

Among Hublot's most technically significant material innovations is Magic Gold, a proprietary alloy developed in collaboration with the École Polytechnique Fédérale de Lausanne (EPFL) and introduced in 2012. Conventional 18-karat gold, with a Vickers hardness of approximately 140–200 HV depending on alloy composition, is susceptible to scratching — a persistent practical limitation for a material used in high-wear applications such as watch cases and bracelets. Magic Gold achieves a Vickers hardness of approximately 1,000 HV by infiltrating a boron carbide ceramic matrix with liquid 18-karat gold under high pressure and temperature, producing a composite in which gold fills the interstices of the ceramic structure. The result retains the legal gold content (750 parts per thousand) required for the 18-karat designation and the warm yellow colour of gold, while exhibiting scratch resistance comparable to that of hardened steel. The material is extraordinarily difficult to machine and cannot be cast by conventional methods, which constrains its application but also ensures that it remains genuinely proprietary. Magic Gold cases are frequently combined with gem-set bezels, the contrast between the scratch-resistant gold and the brilliance of pavé-set diamonds or coloured stones being central to the aesthetic proposition.

Ceramics, Carbon Fibre, and Other Materials

Beyond Magic Gold, Hublot employs a range of advanced materials that interact with gemstone setting in distinctive ways. Zirconium oxide ceramic, used for cases and bezels in black, white, and — more recently — a range of colours including blue and green achieved through doping with metallic oxides, provides a hard, hypoallergenic, and deeply saturated surface. Gem-setting into ceramic requires specialised tooling, as the material cannot be burnished in the manner used for precious metal settings; stones are typically held by pre-machined seats and secured with adhesive or by the geometry of the case architecture itself. Carbon fibre composites, both woven and forged, appear in cases and dials, their directional texture providing a visual counterpoint to the uniformity of pavé gem-setting. Sapphire crystal — not the synthetic corundum used for watch glasses, but machined blocks of colourless synthetic sapphire used for entire case structures — features in a number of limited editions, creating a fully transparent case through which the movement is visible from all angles; these sapphire-case models are sometimes further set with diamonds on the bezel, combining two forms of the same mineral species in a single object.

Gem-Set Complications

Hublot's integration of gemstones extends beyond entry-level complications to the most technically demanding movements in the manufacture's portfolio. The MP (Masterpiece) collection includes tourbillons, minute repeaters, and perpetual calendars in fully gem-set configurations. The challenge in these pieces is to reconcile the spatial requirements of a high-complication movement — which may demand bridges, cams, and levers occupying every available cubic millimetre of the case interior — with the structural requirements of setting stones in the bezel, case middle, and dial surround without compromising the movement's function or serviceability. Hublot's approach is to develop the gem-set and non-gem-set versions of a complication in parallel from the design stage, rather than adapting an existing case after the fact.

Coloured Gemstones in Context

Within the broader landscape of gem-set watchmaking, Hublot occupies a distinctive position. Where the Genevan tradition represented by makers such as Patek Philippe or Vacheron Constantin tends to favour classical stone selection — white diamonds, occasionally blue sapphires — in settings that defer to the movement, Hublot's aesthetic is explicitly contemporary and material-forward. Coloured stones are chosen as much for their chromatic relationship to case and strap materials as for their intrinsic rarity. Tsavorite garnets, for instance, appear in bezels paired with green ceramic or green rubber straps, their vivid yellowish-green providing a colour match that would be difficult to achieve with emerald at comparable cost and consistency of colour. Pink sapphires are used in conjunction with rose gold and pink ceramic. This chromatic systems approach to gem selection is more characteristic of contemporary fashion jewellery than of traditional haute horlogerie, and it reflects Hublot's positioning as a brand that addresses a clientele comfortable with both worlds.

The stones used in Hublot's production are sourced through established trade channels and are subject to standard industry disclosure requirements. The manufacture does not, as of the time of writing, publish detailed provenance documentation for individual stones in the manner of a fine jewellery house offering single-stone certificates, though significant gem-set limited editions are accompanied by documentation from recognised gemmological laboratories.

Market Position and Legacy

Hublot's commercial trajectory since the mid-2000s has been among the most rapid in Swiss watchmaking. The brand's willingness to engage with sport, music, and contemporary culture as sponsorship and collaboration partners — including long-standing associations with association football and Formula One — has brought gem-set haute horlogerie to an audience that might not have encountered it through traditional fine watchmaking channels. The manufacture produces timepieces across a wide price range, from entry-level steel Big Bang models to unique gem-set commissions valued at several million Swiss francs. This breadth is itself a statement of the Art of Fusion philosophy: the same design language and the same material ambitions applied at every level of the range.

For the gemmologist or jewellery specialist, Hublot represents an important case study in the industrial-scale application of coloured gemstones to objects that are not, strictly speaking, jewellery — objects governed by horological function, mechanical engineering constraints, and materials science as much as by aesthetic tradition. The technical problems solved in setting stones into ceramic, carbon fibre, and Magic Gold have contributed to a broader understanding of gem-setting in non-precious substrates that has relevance beyond watchmaking.