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Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW

Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW Hublot Big Bang Complications Tourbillon Automatic Purple…

Reference 429.JM.0120.RT

Full watch configuration

Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW

$162,599.00
Requested condition
Brand New

By Hublot

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW

Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW

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Hublot Big Bang Complications Tourbillon Automatic Purple Sapphire 44mm 429.JM.0120.RT - BRAND NEW

Catalogue watch price: $162,599.00 USD

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The Hublot Big Bang Complications Tourbillon 429.JM.0120.RT is a brand-new 44mm automatic tourbillon wristwatch housed in a striking full sapphire crystal case and finished with a sapphire bezel, skeleton index and Arabic dial, and a rubber bracelet. This reference sits at the pinnacle of Hublot's bold engineering philosophy, merging haute horlogerie complication with avant-garde transparent materials that put the movement on full theatrical display.

Reference 429.JM.0120.RT is a rare collector's statement that combines a tourbillon complication with one of the most visually arresting case materials in modern watchmaking. Contact Bizak & Co. today to purchase this brand-new Hublot Big Bang Tourbillon at the best price, with the confidence of buying from an authorized luxury dealer.

Compare it across every Big Bang Complications Tourbillon reference we carry, or browse the full Hublot collection at Bizak & Co.

Buy this Big Bang Complications Tourbillon, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The Hublot Big Bang Complications Tourbillon reference 429.JM.0120.RT represents one of the most daring expressions in contemporary fine watchmaking. Introduced as part of Hublot's celebrated Big Bang family, the Complications Tourbillon line pushes the brand's Art of Fusion mantra to its logical extreme by combining a mechanical tourbillon — watchmaking's most revered anti-gravity complication — with an entirely sapphire crystal case construction that renders the watch almost ethereally transparent on the wrist.

The 44mm sapphire crystal case is the centerpiece of this reference. Sapphire crystal is one of the hardest substances on earth, second only to diamond, and machining an entire watch case from it demands extraordinary precision and significant manufacturing investment. The result is a case that is both extraordinarily scratch-resistant and completely see-through, giving the wearer and observer a 360-degree window into the mechanical heart of the watch at all times — a horological showcase unlike almost anything else on the market at any price point.

The skeleton dial of the 429.JM.0120.RT features a thoughtful blend of index and Arabic numeral hour markers, ensuring legibility is never sacrificed for the sake of transparency. The openworked movement architecture beneath the dial is revealed in full, with the rotating tourbillon cage acting as the visual anchor of the composition. The sapphire bezel frames all of this without interrupting the transparency theme, while the signature rubber bracelet — a hallmark of Big Bang sports-luxury identity — grounds the piece with comfort and wearability.

Powering the 429.JM.0120.RT is an automatic tourbillon movement, the presence of which elevates this Big Bang well beyond most complications in the collection. The tourbillon continuously rotates the escapement and balance wheel to counteract the effects of gravity on timekeeping accuracy, and in a case this transparent, every rotation is a mesmerizing spectacle. The automatic winding mechanism ensures effortless daily use without the need for manual winding, making this grand complication as practical as it is impressive.

On the wrist, the Big Bang Complications Tourbillon in sapphire commands attention in a way that few watches can. The 44mm diameter provides a bold, assertive presence suited to those who wear their passion for horology as openly as the movement itself is displayed. The purple hue that the sapphire case can cast under varying light conditions — a natural optical phenomenon of the material — adds yet another layer of visual intrigue, making no two viewings of this watch quite the same.

At Bizak & Co., this reference 429.JM.0120.RT is offered brand new, representing the ultimate opportunity to acquire a fresh example of one of Hublot's most technically and aesthetically ambitious pieces. Whether you are a seasoned collector seeking a conversation-starting tourbillon or a discerning buyer searching for a watch that is genuinely unlike anything else, the Big Bang Complications Tourbillon 429.JM.0120.RT for sale at Bizak delivers exceptional value and provenance. Reach out to our team to buy online or inquire further — we are here to guide every step of your acquisition.

Technical Details
Reference
429.JM.0120.RT
Model
Big Bang Complications Tourbillon
Movement
Automatic
Case material
Sapphire
Bracelet material
Rubber
Dial
Skeleton with Index and Arabic Numerals
Case size
44mm
Requested condition
Brand New
FAQ

1. What makes the Hublot Big Bang Tourbillon 429.JM.0120.RT special?
The 429.JM.0120.RT combines a mechanical tourbillon complication with a full sapphire crystal case, placing it among the most technically and visually extraordinary watches Hublot produces. The completely transparent construction offers an unobstructed view of the rotating tourbillon cage from every angle, making it as much a kinetic sculpture as a timepiece.

2. What movement powers the Hublot 429.JM.0120.RT?
The reference 429.JM.0120.RT is equipped with an automatic tourbillon movement, meaning it self-winds through the motion of the wearer's wrist while incorporating watchmaking's most prestigious anti-gravity complication. The open skeleton dial ensures the movement architecture and rotating tourbillon are fully visible during wear.

3. What is the case size of the Hublot Big Bang Complications Tourbillon?
This Hublot Big Bang Tourbillon reference measures 44mm in diameter, placing it firmly in bold, statement-watch territory consistent with the Big Bang family's sports-luxury DNA. The sapphire crystal case material keeps the visual weight light despite the generous proportions.

4. Is the Hublot Big Bang Tourbillon 429.JM.0120.RT suitable for everyday wear?
While a tourbillon sapphire case watch of this caliber is undoubtedly a special-occasion and collector-grade timepiece, the automatic movement and robust rubber bracelet make it genuinely wearable day to day for enthusiasts who wish to do so. Sapphire crystal is exceptionally scratch-resistant, which helps protect the case during regular use.

5. What are the dial and case material details of the 429.JM.0120.RT?
The dial is skeletonized with a combination of index and Arabic numeral hour markers for readability, set against the fully open movement beneath. The case is constructed from sapphire crystal — one of the hardest and most optically striking materials used in modern watchmaking — complemented by a matching sapphire bezel.

6. How can I buy the Hublot 429.JM.0120.RT and is it a good investment?
The 429.JM.0120.RT is available brand new at Bizak & Co., bizakandco.com, where you can buy online or contact our specialist team directly for pricing and availability. Sapphire-case tourbillon references from Hublot are produced in limited numbers and occupy a rarified segment of the market, making this an compelling acquisition for serious collectors.

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Our five-year Bizak & Co. warranty covers manufacturing defects affecting mechanical operation under normal use, starting on delivery. It is separate from any remaining manufacturer warranty.

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90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

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U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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