Bulgari Octo Finissimo: Ultra-Thin Specs and Prices

What Makes the Octo Finissimo Special

The Bulgari Octo Finissimo is not just thin — it is the thinnest. Since 2014, Bulgari’s watchmaking arm in Le Sentier, Switzerland, has broken eight consecutive world records for ultra-thin movement construction, a streak unmatched in modern horology. The Finissimo line sits within Bulgari’s broader Octo family, which takes its name from the octagonal case shape first introduced in 2012 by watch designer Fabrizio Buonamassa Stigliani.

What separates the Finissimo from competitors like the Piaget Altiplano or Jaeger-LeCoultre Master Ultra Thin is the sheer range of complications Bulgari has squeezed into record-thin cases. Most ultra-thin watches are time-only dress pieces. Bulgari has built an ultra-thin tourbillon, an ultra-thin minute repeater, an ultra-thin perpetual calendar, and an ultra-thin chronograph GMT — each one the thinnest of its kind when released.

The case construction is distinctive too. While most luxury watches use polished or brushed steel, the Finissimo’s signature finish is sandblasted titanium — a matte, grey surface that absorbs light rather than reflecting it. Titanium is roughly 40% lighter than steel, which matters enormously in a watch this thin: the 40 mm automatic weighs just 93 grams on the bracelet. On the wrist, it almost disappears.

Eight World Records for Thinness

Bulgari’s run of ultra-thin records began in 2014 and continued through 2022. Each year, the Le Sentier manufacture tackled a different complication and built the thinnest version ever made. The approach was deliberate: rather than making one thin watch and moving on, Bulgari turned ultra-thin into a systematic programme, proving that thinness was not a one-off stunt but a core competence.

The 2021 perpetual calendar was a high point beyond the numbers: it won the Aiguille d’Or at the Grand Prix d’Horlogerie de Genève, the prize regarded as watchmaking’s equivalent of an Oscar. The jury cited both the technical achievement and the finishing quality — a recognition that Bulgari’s ultra-thin work was not just an engineering exercise but a legitimate contribution to haute horlogerie.

The Current Lineup: Every Model Compared

The Octo Finissimo family currently spans six distinct model types, from a time-only automatic to the limited-edition Ultra. All share the octagonal case shape and sandblasted titanium as the default material, though precious-metal variants exist for most complications. Here is every current variant with the specifications that matter.

Automatic (40 mm)

The entry point into the range. The 40 mm automatic runs the in-house BVL 138 caliber, which stands just 2.23 mm tall — roughly the height of two stacked credit cards. A peripheral platinum microrotor winds the mainspring without adding vertical height, and the movement delivers approximately 60 hours of power reserve. The overall case thickness is 6.40 mm, water resistance is 30 metres, and the weight is around 93 grams on the integrated titanium bracelet. Available with grey, blue, or black dials.

Automatic (37 mm — New for 2026)

Unveiled at Watches and Wonders 2026, Ref. 104089 scales the Finissimo down to 37 mm. It uses the new Cal. BVF100, a micro-rotor automatic with roughly 72 hours of power reserve. The case is sandblasted titanium with an opaline titanium dial, and water resistance remains at 30 metres. Retail pricing starts at approximately $16,600 (CHF 15,100), with availability from September 2026.

Skeleton

The skeleton variant uses the BVL 128SK caliber, a hand-wound movement standing 2.35 mm tall. The dial side is entirely open-worked, showing the bridges and mainspring barrel in sandblasted titanium finish. Case thickness is 5.35 mm, and the power reserve is approximately 65 hours. The skeleton is available in titanium, ceramic, and rose gold, with titanium versions priced from around $16,000 on the secondary market.

Chronograph GMT

The BVL 318 caliber packs a chronograph, GMT function, and date into a movement just 3.30 mm tall. The overall case thickness is 6.90 mm — thinner than most three-hand automatic watches from other brands. The peripheral rotor uses an openworked platinum mass, and the power reserve is approximately 55 hours. The chronograph GMT is available in titanium (around $17,500 pre-owned) and was a limited edition in rose gold.

Perpetual Calendar

The Aiguille d’Or winner. The BVL 305 caliber fits a full perpetual calendar — day, date, month, leap year, and retrograde date — into a movement 2.75 mm tall, inside a case 5.80 mm thick. A newer blue titanium version (Ref. 104262) joined the range in 2026. Retail prices for the perpetual calendar exceed $40,000, and pre-owned examples trade from roughly $35,000 depending on the reference and condition.

Ultra (Ref. 103611)

The ultimate expression of the programme. At 1.80 mm total thickness, the Ultra is the thinnest mechanical watch ever made. It achieves this by making the caseback and the movement main plate one single component in tungsten carbide, eliminating the gap between them. The BVL Cal. 180 is manual-winding with 21 jewels, beats at 28,800 vph, and delivers around 50 hours of power reserve. Water resistance is 10 metres (1 bar), and the production was limited to 10 pieces at €400,000 each. A QR code engraved on the barrel links to an NFT certificate of ownership.

The 2026 37 mm Model: What Changed

The 37 mm Octo Finissimo (Ref. 104089) is the most significant update to the automatic range since the original 40 mm launched in 2017. The smaller case is aimed at wearers who found the 40 mm too assertive — and in a watch this thin, even 3 mm of diameter makes a visible difference on the wrist.

The bigger news is under the dial. The Cal. BVF100 is a new movement, not a scaled-down BVL 138. It retains the micro-rotor architecture but extends the power reserve from 60 to approximately 72 hours — a full three-day weekend on a single wind. The movement still features the Côtes de Genève decoration and chamfered bridges visible through the sapphire caseback.

The 37 mm model keeps the integrated bracelet design that tapers smoothly from the case, and it retains the sandwich construction with a brushed bezel and polished mid-case. For buyers who have been watching the Finissimo but found it too large, this is the release to act on.

Pricing: Retail and Secondary Market

The Octo Finissimo spans a wide price range. The 40 mm automatic in titanium on a leather strap — the most accessible configuration — was originally priced around €12,500 (roughly $13,500) and trades on the secondary market from approximately $10,000 to $13,500 depending on condition and completeness. On the titanium bracelet, expect to pay roughly $14,000–$16,100. The new 37 mm (Ref. 104089) starts at approximately $16,600 at retail.

Complications add substantially to the price. The skeleton trades from around $16,000 pre-owned. The chronograph GMT, which was already difficult to find when current, has stabilised at roughly $17,500 on the secondary market. The perpetual calendar commands $35,000 and up, and the rose gold or platinum variants can exceed $60,000.

The Ultra editions exist in a different market entirely. The original Ultra (Ref. 103611) was €400,000 for 10 pieces, and the Ultra Tourbillon Platinum (Ref. 104344) is priced on request for another run of 10 pieces. These are collector pieces with no meaningful secondary market — when one does appear at auction, the result depends entirely on which collectors are in the room.

For buyers looking at the high-end watch market more broadly, the Finissimo automatic competes on price with the Piaget Altiplano (from roughly $13,000), the Jaeger-LeCoultre Master Ultra Thin (from roughly $8,000), and the Vacheron Constantin Patrimony (from roughly $20,000). What the Finissimo offers that none of those do is an integrated titanium bracelet — most ultra-thin competitors are strap-only watches.

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