Hublot Big Bang Unico Yohji Yamamoto "Limited Edition 198/200"

Getting to Know Hublot

Hublot was founded in 1980 in Nyon, Switzerland, and built its modern identity around the idea its founders called the Art of Fusion, which is the unapologetic mixing of materials that traditional Swiss watchmaking kept separate. That is the lens to use when you are looking at one of these watches on the bench. The polarizing reputation comes from how loudly the brand commits to its choices, and the underlying engineering is more serious than the styling sometimes lets on. This page exists to walk through what you are actually looking at on the listing in front of you so you can buy with eyes open.

How a Hublot Reference Number Works

Every Hublot reference follows the same structured pattern, and once you can read it you can confirm exactly what you are looking at without taking anyone's word for anything. The format runs three digits, two letters, four digits, two letters, and an optional three-digit limited edition tail. Take 421.NX.1170.RX as a worked example. The first three digits tell you the collection and case size, in this case the 42mm Big Bang Unico generation. The next two letters give the case and bezel materials together, with NX meaning titanium. The four digits in the middle identify the dial and inner bezel finish. The last two letters describe the strap, with RX being structured rubber. If a limited piece carries something like .500 at the end, that is the edition size of the run.

Worth noting on this brand specifically: the reference itself is not engraved on the caseback. What you will find back there is the unique serial number, which acts as the watch's individual fingerprint and should match what is printed on the warranty card. That is why papers carry more weight on these pieces than they do on some other brands. With the card you can verify the reference against the serial, register the watch in the brand's Hublotista program, and confirm what configuration the piece was originally sold as. Without the card a watch is still authenticatable, it just takes more hands-on work at the case, dial, and movement level.

What the Specifications Actually Tell You

Movement and Calibre

The movement spec is the fastest read on what kind of Hublot you are actually looking at. The HUB1280 Unico is the in-house flyback chronograph that defines the modern flagship, recognizable for moving the column wheel and double horizontal clutch to the dial side so you can watch the chronograph engage from the front of the watch. It runs at 4Hz with a 72-hour power reserve. The HUB1201 Meca-10 is the manually wound caliber with twin parallel barrels and a ten-day power reserve, designed visually around a Meccano-style architecture with a rack-and-pinion power reserve indicator across the dial. The HUB1100 family is the simpler self-winding three-hand caliber that powers the entry-level Classic Fusion. The HUB1155 and related references are the Aerofusion chronograph calibers built on heavily reworked external bases. Higher up the catalog, the HUB6020 is the skeleton tourbillon built specifically for the tonneau-shaped Spirit of Big Bang case, and the MP series uses bespoke calibers measured in days rather than hours of power reserve.

The Dial

Dials here are not a single category, and the listing will tell you which family the piece belongs to. Skeletonized Unico dials are the most recognizable, with the column wheel visible at three or four o'clock and the movement bridges exposed through cutouts in matte black or sandblasted finishes. Sapphire dials are common across the Aerofusion line and many MP pieces, providing transparent depth to the chronograph layout beneath. Classic Fusion three-hand dials are the most restrained, usually finished with a sunray brush, applied baton indices, and the signature counterweight on the sweeping seconds hand. The Sang Bleu collaboration replaces traditional hands entirely with overlapping octagonal and hexagonal discs that rotate over the dial. Whatever you see on the listing, the dial choice is what changes the personality of the watch more than anything else.

Case Material and Size

This is where Hublot puts most of its engineering, and the listing material is rarely just steel. Titanium is the most common modern case material and shows up across both Big Bang and Classic Fusion. Ceramic is used not only for bezels but for full cases, and the brand patented a pressure-sintered process that allows pigment to survive the firing, which is how you end up with full ceramic cases in red, royal blue, yellow, and forest green where most competitors cannot color ceramic at all. Magic Gold, introduced in 2011, is the brand's scratch-resistant eighteen-carat gold, made by forcing molten gold into a porous ceramic structure under pressure. King Gold is the brand's proprietary higher-copper rose gold alloy. Carbon fiber, tantalum, bronze, and full sapphire cases also appear regularly. Sizes range from 33mm at the small end of Classic Fusion through 38, 42, and 45mm for most of the modern catalog. The Unico chronograph sits at 42mm or 44mm depending on generation, and the larger MP pieces can run to 48mm or more. The modular sandwich case construction means even the bigger sizes wear closer to the wrist than the diameter suggests because the lugs are short and the caseback is curved.

Water Resistance and Crystal

Most current Big Bang and Classic Fusion references carry a 100 meter water resistance rating, which is comfortable for daily wear and incidental water exposure but not engineered for serious diving. Sapphire-cased pieces and certain skeletonized references drop to 30 or 50 meters because the case structure trades sealing surface for visual transparency, and the listing will state the figure. The King Power line and dedicated dive variants carry higher ratings. The crystal on the dial side is anti-reflective sapphire across the catalog, and full sapphire pieces mean the entire mid-case, bezel, caseback, and crystal are machined from the same material family.

Telling the Collections Apart

Big Bang Unico

This is the modern flagship and the one most buyers think of first. The case is built in the brand's signature sandwich construction, layering titanium, ceramic, gold, or carbon fiber into the central case ring, lugs, bezel, and caseback as separate components. The six H-shaped bezel screws are exposed and intentional. The Unico in-house chronograph runs the watch and is visible from the dial side. This is the piece for the buyer who wants the brand's full statement.

Classic Fusion

This is the slimmer, quieter line that honors the original 1980 porthole design Carlo Crocco launched the brand with. Cases run from 33 to 45mm, the dials are generally restrained with sunray finishes and applied indices, and the rubber-backed alligator strap that fuses leather to a rubber lining is the signature. Three-hand, chronograph, Aerofusion skeleton, and tourbillon variants all sit inside this family. It is the Hublot for the buyer who likes the philosophy but wants something that disappears under a shirt cuff.

Spirit of Big Bang

Launched in 2014, this is the tonneau-cased sibling to the Big Bang. The case is curved to match the wrist, the bezel is barrel-shaped, and the same six H-screws and sandwich construction carry over. Many references house high-beat chronograph movements drawn from the Zenith El Primero architecture available through the LVMH group. Visually it overlaps with the tonneau silhouette people associate with Richard Mille, executed through the brand's specific material science.

Square Bang Unico

Introduced in 2022, this takes the Unico movement and forces it into a rounded-square geometry that historically has been brutally difficult to manufacture and water-seal. The result wears differently than anything else in the catalog, which is the point. It is a deliberate disruption of what people expect a sports watch case to look like.

MP Masterpiece

The MP line is where the research and development team is given room to ignore practicality. The MP-05 LaFerrari uses eleven mainspring barrels in series down the center of the case for a fifty-day power reserve. The MP-11 distills the same idea into seven horizontal barrels and a fourteen-day reserve. These are concept pieces that happen to keep time, sized and priced accordingly, and rarely the everyday wear in a collection.

Buying Your Hublot from Grand Caliber

Everything on this page, from the reference to the condition, is something we confirm before a watch is ever listed. Grand Caliber is an independent dealer in Uptown Dallas, and every Hublot we sell is authenticated in house and priced openly so you can see the real market value before you decide. If you want to talk through a specific piece or are hunting a reference we do not currently have, you can reach us at 214-225-7198 or info@grandcaliber.com, or browse the full Hublot collection online.

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