The Bulgari Octo Finissimo Ultra Tourbillon measures just 1.85 mm in total thickness. The current official platinum model is reference 104344, built from platinum and tungsten carbide and powered by Bulgari’s hand-wound BVF 900 flying-tourbillon movement. Bulgari presents it as the world’s thinnest tourbillon watch; the company’s official pages do not publish a current price or inventory status, so buyers must request a quotation directly from Bulgari or an authorized retailer.
How thin is the Octo Finissimo Ultra Tourbillon?
Its defining specification is a total thickness of 1.85 mm. Bulgari describes that measurement across the complete watch, not merely the case. The figure appears in the brand’s official product material and in its Watches and Wonders 2025 coverage.
At that scale, the Ultra Tourbillon is a highly integrated design exercise: the case, bracelet and tourbillon movement must function within a profile only a little more than one-and-three-quarter millimetres thick. Bulgari calls the achievement its “10th world record” in the 2025 Watches and Wonders editorial.
What movement is inside it?
BVF 900 hand-wound flying tourbillon
The platinum reference 104344 uses Bulgari’s BVF 900 calibre. It is a hand-wound movement with a flying-tourbillon construction. Bulgari rates it for a 42-hour power reserve and a frequency of 28,800 vibrations per hour (4 Hz).
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- Exclusive Limited Edition Only 100 Pieces Worldwide: Each LONGIO Volcan Tourbillon is part of a strictly limited run of just 100 pieces worldwide, ensuring true rarity and exceptional collector's value
- A Tribute to Earth's Sublime Power: Inspired by the majestic force of volcanic eruptions, the Volcan blends elemental power with refined elegance for a distinctive luxury statement
- Central Tourbillon Engineering: Features a rare mechanical hand-wound central tourbillon rotating once every 60 seconds, with 16 precision screws on the cage to achieve balance
- High-Performance Hand-Wound Movement: Driven by a hand-wound mechanical movement beating at 21,600 vibrations per hour (3 Hz), with 19 jewels and an impressive 48-hour power reserve, visible through a sapphire crystal case back
- Robust 42mm DLC Titanium Case: Engineered from lightweight titanium and finished with Diamond-Like Carbon (DLC) coating for exceptional scratch resistance and a sophisticated black aesthetic, ensuring durability and elegance
- Winding: hand-wound
- Regulating organ: flying tourbillon
- Power reserve: 42 hours
- Frequency: 28,800 vibrations per hour, or 4 Hz
The movement specification is important because the 1.85 mm record is not achieved by removing the complication. The tourbillon remains part of the watch’s architecture while the entire watch retains its exceptionally thin profile.
Is it the thinnest tourbillon watch?
Bulgari positions the Octo Finissimo Ultra Tourbillon as the world’s thinnest tourbillon watch. Its 1.85 mm total thickness is the basis of that claim. The company’s Watches and Wonders 2025 editorial calls it “the thinnest Tourbillon watch ever” and describes the integration as a record-setting achievement.
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- This tourbillon crafted by Swiss chief designer Etienne Ruffieux with modern architectural aesthetics, features a lightweight, comfortable, free-sprung balance flying tourbillon. It houses an independently developed architectural tourbillon movement adorned with oversized ruby bearings. The design aesthetic is expressed through the interplay of light and shadow created by its extreme skeletonization. The watch has been honored with the IAI Global Design Award for its outstanding original design.
- Independently developed CAL9001 free-sprung balance flying tourbillon movement, manual winding, 28,880 vibrations per hour, 25 ruby bearings. Features high-end finishing including satin brushing and beveled edges, engraved brand logo with gold-stamped. Dual mainspring series technology delivers 80-hour power reserve (twice that of standard tourbillon movements). This technology ensures more uniform and gradual mainspring release, resulting in enhanced timekeeping precision and stability.
- The CAL9001 tourbillon movement features the exclusive free-sprung micro-adjustment technology typically reserved for luxury timepieces. This free-sprung system eliminates the need for a balance spring regulator, thereby overcoming the timing inaccuracies caused by regulator displacement in conventional mechanical movements. This ensures the watch delivers enhanced precision and stability in timekeeping.
- This tourbillon measures 40mm in diameter and just 9.7mm in thickness, weighing a mere 67 grams. Its meticulously engineered structure and radically skeletonized tourbillon movement eliminate all superfluous metal components, allowing the mechanical artistry of the free-sprung flying tourbillon to shine in its purest form. It is an exquisite, high-end tourbillon watch that is both ultra-thin and supremely comfortable.
- The watch is water-resistant to 50 meters, featuring a double-sided sapphire crystal and an Italian leather strap with hand-stitched detailing for comfortable and durable wear. We offer a three-year worldwide warranty.
That wording should be understood as Bulgari’s own official record claim. The published material identifies the watch and measurement but does not provide an independent third-party ranking methodology. The movement is specifically a flying tourbillon in the platinum model, while Bulgari’s 2025 titanium presentation is described as a skeleton tourbillon.
Platinum production model versus 2025 titanium presentation
Bulgari has shown the Ultra Tourbillon in more than one material treatment. The currently documented official product model is the platinum reference 104344. A separate Watches and Wonders 2025 presentation used sandblasted titanium and emphasized a skeletonized tourbillon architecture.
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- Central Tourbillon Engineering: Features a rare mechanical hand-wound central tourbillon rotating once every 60 seconds, with 16 precision screws on the cage to achieve balance
- Limited to 100 Pieces Worldwide: Exclusivity guaranteed with only 100 units crafted for collectors who appreciate rarity and technical artistry
- 47mm Stainless Steel Construction: Robust case architecture with sharp, angular geometry and finely brushed surfaces for a bold, industrial aesthetic
- 1000M Dive Capability: Professional-grade water resistance to 1000 meters, equipped with a helium escape valve for safe saturation diving
- Premium Watch Features: Scratch-resistant sapphire crystal, solid stainless steel bracelet with extension buckle, and precision-engineered rotating bezel for timing functions with Swiss Super LumiNova on both dial index and hands
| Version | Thickness | Materials | Tourbillon description | Movement data | Reference or status |
|---|---|---|---|---|---|
| Octo Finissimo Ultra Tourbillon, platinum | 1.85 mm total | Platinum case and bracelet with tungsten-carbide construction; blue accents shown by Bulgari | Flying tourbillon | BVF 900, hand-wound; 42-hour reserve; 28,800 vph (4 Hz) | Official current model, reference 104344 |
| Octo Finissimo Ultra Tourbillon, titanium presentation | 1.85 mm total | Sandblasted titanium | Skeleton tourbillon architecture | Not separately stated in the cited event description | Shown by Bulgari at Watches and Wonders 2025; a separate production reference is not stated |
The two descriptions should not be treated as interchangeable retail specifications. Reference 104344 is the platinum model identified on Bulgari’s current official product page. The titanium watch is documented as a 2025 event presentation, and the cited material does not establish a separate reference, price or ongoing inventory.
Materials and design details
Platinum and tungsten carbide
The official platinum watch combines a platinum case and bracelet with tungsten-carbide construction. Bulgari shows blue accents on this version, giving the otherwise monochrome precious-metal watch a contrasting visual detail.
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- Exclusive Limited Edition of 100 Pieces: LONGIO Volcan Tourbillon is strictly limited to just 100 pieces worldwide, ensuring rare collectability and elevated value for true horology connoisseurs
- Precision Central Tourbillon with Small Seconds: Features a captivating 60-second tourbillon complication at the 6 o'clock position, combined with small seconds display, designed to counteract gravity for superior timekeeping accuracy
- High-Performance Hand-Wound Movement: Driven by a hand-wound mechanical movement beating at 21,600 vibrations per hour (3 Hz), with 19 jewels and an impressive 48-hour power reserve, visible through a sapphire crystal case back
- Robust 42mm DLC Titanium Case: Engineered from lightweight titanium and finished with Diamond-Like Carbon (DLC) coating for exceptional scratch resistance and a sophisticated black aesthetic, ensuring durability and elegance
- Designed for Comfort and Style: Completed with a black natural rubber strap and folding clasp, offering ergonomic comfort, modern style, and 50 meters of water resistance for versatile luxury wear
Why the material distinction matters
Platinum and titanium are not simply color variations. They identify different presentations of the Ultra Tourbillon, with different stated construction descriptions. Confirm the material, reference and movement configuration on the quotation before purchasing, especially if a listing uses “Ultra Tourbillon” without identifying the exact version.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price, availability and where to buy
Bulgari’s consulted official product and event pages do not publish a current retail price or reliable inventory status for the Octo Finissimo Ultra Tourbillon. There is therefore no verified public price to report for reference 104344, and a secondary-market asking price should not be presented as Bulgari’s retail price.
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- Exquisite Tourbillon Masterpiece:Powered by a precision manual-winding tourbillon movement, this timepiece features a mesmerizing flying tourbillon at the 6 o'clock position. It perfectly captures the essence of high-end mechanical artistry, offering a dynamic view of the oscillating balance wheel that showcases the pinnacle of watchmaking craftsmanship.
- Scratch-Proof Sapphire Crystal:Protected by premium synthetic sapphire crystal—renowned for being second only to diamond in hardness—this watch face resists scratches from daily wear, keys, and accidental bumps. The anti-reflective coating ensures a clear, sharp dial view under any lighting condition.
- Sophisticated 42mm Profile:With a universally flattering 42mm case diameter and an ultra-thin 12mm profile, this watch sits elegantly on the wrist without feeling bulky. The sleek stainless steel case paired with a genuine leather strap offers a timeless aesthetic suitable for boardrooms, weddings, or formal dinners.
- Reliable 5ATM Daily Waterproofing:Engineered with a 5ATM water resistance rating, it handles daily life with ease—resisting splashes from handwashing, rain, and sweat during exercise. (Note: Not suitable for diving or hot showers). A dependable companion for your active lifestyle.
- The Ultimate Gift for Gentlemen:Presented in a luxury gift box, this tourbillon watch is more than a timekeeper; it's a statement piece. Ideal for husbands, fathers, or bosses who appreciate fine mechanics. Backed by our commitment to quality and customer satisfaction.
For a current purchase inquiry:
- Contact a Bulgari boutique or Bulgari’s official client service and specify Octo Finissimo Ultra Tourbillon, reference 104344.
- Ask whether the quoted watch is the platinum-and-tungsten-carbide configuration and request the current regional price, taxes and delivery terms.
- If buying through an authorized retailer, have the retailer confirm authorization, reference, material, warranty and the watch’s actual availability.
- Match the reference and construction details against the paperwork and watch before paying; do not rely on a listing title alone.
Availability can change by country and by boutique. A direct quotation is the only reliable way to establish the price and whether a piece can currently be allocated.
Quick Recap
What to verify before purchasing
- Thickness: the claimed specification is 1.85 mm total thickness.
- Reference: the current official platinum model is 104344.
- Materials: platinum and tungsten carbide for the official product configuration; titanium indicates the separately documented 2025 presentation unless the seller proves otherwise.
- Calibre: BVF 900, hand-wound flying tourbillon, with a 42-hour reserve and 4 Hz frequency for the platinum model.
- Seller: Bulgari or an authorized retailer, with authentication and warranty documentation.
- Commercial terms: obtain a dated, region-specific quotation rather than inferring value from an unrelated secondary listing.
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.
