Name: Bulgari Octo Finissimo Automatic 102713
Brand: Bulgari
SKU: 102713

The Octo Finissimo Automatic holds the world record for thinnest automatic watch: 5.15mm total case height, with the BVL 138 movement measuring just 2.23mm. Bvlgari built this in titanium at 40mm, which means it wears like a chip of cool metal on the wrist. No compromise on wearability was made to claim that record.

What it is

Bvlgari launched the Octo line in 2012, then began systematically setting world records with ultra-thin variants across manual wind, tourbillon, minute repeater, and perpetual calendar complications. The automatic version arrived in 2017 and set its own record at the time, proving the feat was not limited to manually wound movements. The BVL 138 rotor is integrated into the movement architecture rather than stacked on top, which is how Bvlgari achieved the total thickness.

Titanium was the only case material compatible with the weight targets the engineers set. The Finissimo family has since become the most credible ultra-thin program from any manufacture, with record after record verified by official bodies.

Buying notes

The case is titanium, which scratches readily and cannot be polished back to factory condition the way steel can. The 5.15mm total height means the crystal sits very close to the movement, and a sharp impact on the crystal can transfer directly to the fragile rotor or bridges. Service access requires a manufacture-trained technician familiar with the BVL 138; not every watchmaker will touch it, and those who do often decline.

The bracelet integration is tight, and link replacement or resizing outside an authorized center risks misalignment of the thin titanium components. Because the record-holder status attracts attention, fakes and franken pieces exist, so provenance documentation matters more than usual for pre-owned purchases.

Market read

New retail is approximately $14,000 to $16,000 depending on market and configuration. Pre-owned examples in good condition trade in the $9,000 to $12,000 range, with condition being the primary driver given how easily titanium picks up wear. The record-holder story sustains demand, and the automatic variant is the most practical entry into the Finissimo family, which keeps secondary market interest steady.

Service expectations

The BVL 138 is an in-house Bvlgari caliber built to extreme tolerances and should be serviced only at a Bvlgari service center or an authorized partner with documented experience on the Finissimo family. Bvlgari recommends a service interval of approximately five years. Given the movement's 2.23mm height, disassembly and reassembly require tools and fixtures specific to this caliber.

Editorial copy is AI-drafted from primary sources and reviewed by Grail Atlas before publication. Where the text is uncertain about a fact, it says so. Email corrections@grailatlas.com if something reads wrong. Signals on this page (community, OSINT) are clearly separated from the editorial sections.

Mass-produced#1 in familyOfficial press photos

Condition affects price

Pre-owned watches trade across a wide condition spectrum. These ranges are typical for the secondary market.

New Old Stock

Unworn example retaining original packaging, tags, and warranty documentation.

+30–50% vs median

Unpolished

Worn but the case has never been polished; original brushed and polished surfaces are intact.

+15–25% vs median

Polished

Case has been professionally or amateur polished at some point; edge definition is softened.

-15 to -5% vs median

Recently Serviced

Movement has been recently serviced with documented service records; case condition varies.

At median

Project

Needs service, has dial or hand issues, non-original parts, or other remediation before daily wear.

-50 to -25% vs median

Full condition grading guide →

Market price

$8,000–$12,000

steel·2026 Q2

Price trend chart coming soon

The Octo Finissimo Automatic in titanium or steel is Bulgari's best value proposition; secondary prices are stable and the record-thin movement gives the watch a genuine story beyond its looks.

Editorial estimate, 2026 Q2. Actual prices vary by condition, date, and box/papers status.

Movement tier: unclassified · caliber Bvlgari Cal. BVL 138: ultra-thin in-house automatic, 21,600bph, 60h PR, 22j; only 2.23mm thick, a record-holder; used in Octo Finissimo Auto; 5mm total watch thickness · 60h power reserve (2.5 days)

Medium-large: suits wrists 6.5 in+ (16.5 cm+)

40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

Total watch height is 5.15mm; any claimed ultra-thin Octo Finissimo measuring over 5.5mm is incorrect. Cal. BVL 138 at 2.23mm movement height.

Known issues in the market

Counterfeit Octo Finissimo cannot replicate the 5.15mm total height; measure with calipers and compare to specification.
Case finishing transitions between brushed and polished surfaces must be sharp; polishing rounds the transitions.

Area	What to check	What is correct	Red flag
case	Total case height measurement	Total watch height at or near 5.15mm consistent with ultra-thin specification	Height exceeds 5.5mm; not the ultra-thin variant; counterfeit or wrong reference
case	Octagonal case finishing transitions	Sharp transitions between brushed and polished surfaces on octagonal case facets	Rounded transitions; over-polished case
caseback	Cal. BVL 138 designation	Cal. BVL 138 in-house ultra-thin auto at 2.23mm movement height; designation on caseback	Wrong caliber; non-ultra-thin movement; movement swap

Common legitimate replacements

Strap; Bvlgari OEM rubber or leather.
Crystal; ultra-thin sapphire specific to Finissimo case.

Expert resources: Bvlgari Octo Finissimo Automatic press materials. Cal. BVL 138 technical documentation.

Authentication guide

Last reviewed June 2026

The Octo Finissimo Automatic holds a world record for the thinnest automatic movement at 2.23mm; the complete watch is 5.15mm. Any stated Finissimo Auto that looks or feels substantially thicker than this specification is not genuine. The titanium integrated bracelet and the ultra-thin case finishing complexity are the primary authentication pillars.

Known reproduction risks

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HIGH RISK

The Octo Finissimo is replicated, but the 5.15mm thickness specification is essentially impossible to fake accurately. All known replicas are substantially thicker.

Total thickness measurably greater than 5.15mm -- this is definitive; replicas cannot match the record-holder specification
Octagonal bezel with rounded face transitions rather than precise right-angle edges
Integrated bracelet with incorrect taper or link geometry
"Titanium" marked on a case that is magnetic (titanium is non-magnetic) -- a magnet test separates titanium from steel replicas
Caseback text that does not match the Bulgari production specification for this reference

The thickness test is the single most reliable tell for this reference. Put it next to any conventional 40mm dress watch -- the Octo Finissimo Automatic should look impossibly flat.

Dial variants by era

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Era	Description	Identifiers
2014 to present	Slate grey or silver dial on a titanium case with integrated titanium bracelet. The watch is striking for its extreme flatness. The dial has applied indices and minimal text.	Slate grey or silver dial in titanium case of 5.15mm total thickness -- a caliper measurement is the definitive check Applied hour indices in a thin, refined format consistent with a dress watch "BVLGARI" text at 12 o'clock in the correct Bulgari typeface "OCTO FINISSIMO AUTOMATIC" text on the dial identifying the specific reference Integrated titanium bracelet with alternating brushed and polished links Octagonal bezel sitting on the round middle case -- "Octo" = eight sides

Service part flags

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Ultra-thin case (5.15mm total)

Original: The complete watch is 5.15mm thick. The Cal. BVL 138 AA movement is 2.23mm. Any watch substantially thicker than this is not a genuine Octo Finissimo Automatic. The case wall construction to achieve this thickness is proprietary Bulgari engineering.

Replacement tells

Total case thickness measurably greater than the 5.15mm specification -- use a caliper across the crystal and caseback
Case that feels rigid and substantial in the way a conventional dress watch does -- the Octo Finissimo is extraordinarily thin and flexible-feeling when handled
Caseback that does not sit flush with the case band -- at this thickness, any gap is visible

Octagonal bezel finishing

Original: Eight alternating polished and brushed facets on the octagonal bezel. The bezel sits on the round middle case. Each octagonal face has a precise right-angle edge between the polished and brushed elements. The complexity of finishing this geometry at ultra-thin dimensions is significant.

Replacement tells

Bezel face transitions that are rounded or show finishing artifacts -- the genuine Octo bezel has precise edges throughout
Polished facets that are not genuinely mirror-finished -- true polished surfaces should reflect clearly
Brushed facets with inconsistent grain direction

Integrated titanium bracelet

Original: The bracelet tapers from the case with alternating brushed and polished link surfaces. On the Finissimo, even the bracelet is thin and refined. The clasp integrates the same finishing quality as the case.

Replacement tells

Bracelet with incorrect taper geometry or link width for the Finissimo specification
Brushed/polished transitions that are imprecise at the link edges
Clasp that does not match the case finishing quality
Titanium bracelet that feels heavier than expected -- titanium is noticeably lighter than steel

Case back markings

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2014 to present

Solid titanium caseback -- no exhibition window (the movement is viewable from the dial side through the open architecture on some variants)
"BVLGARI" and "OCTO FINISSIMO" text on the caseback
Reference 102713 or current production reference on the case band
"SWISS MADE" on the caseback
"TITANIUM" material confirmation on the caseback
30M water resistance rating
Serial number on caseback or case band

Movement tells

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Cal. BVL 138 AA beats at 28,800bph with a 50-hour power reserve. A fully wound Octo Finissimo stopping before 42 hours warrants service.
The 2.23mm movement thickness means the movement architecture is radically different from any conventional automatic. The movement is hand-winding compatible but self-winding via micro-rotor.
The micro-rotor winding system produces a softer wind sound than a conventional full-size rotor. Any loud clicking from the winding mechanism warrants service.
Bulgari-authorized service is required for the BVL 138 AA due to the proprietary ultra-thin architecture.

Sources: Bulgari -- Octo Finissimo Automatic and Cal. BVL 138 AA documentation; Hodinkee -- Octo Finissimo world record thin movement review; WatchUSeek -- Bulgari Octo authentication thread.