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The Encyclopedia of Horology

Wristwatch · Tourbillon wristwatch

Bvlgari Octo Roma Tourbillon Sapphire

Partially verified

This Bvlgari Octo Roma Tourbillon Sapphire, reference 102720, is a limited edition manual-winding wristwatch, number 26 of 50 pieces. The 44mm octagonal case is constructed from titanium with a black DLC (diamond-like carbon) treatment and sapphire elements. The watch features an openworked dial and movement, revealing the manual-winding caliber BVL 206, which includes a tourbillon at the 6 o'clock position. The design incorporates luminescent material on the indexes, hands, and the side of the case. Additionally, a power reserve indicator with luminous material is visible on the transparent caseback. The watch is worn on a leather strap secured by a stainless steel deployant clasp with a DLC coating. The auction description notes that the crown functions for both time setting and movement winding.

Front view of the Bvlgari Octo Roma Tourbillon Sapphire, showcasing the openworked dial and tourbillon.
Front view of the Bvlgari Octo Roma Tourbillon Sapphire, showcasing the openworked dial and tourbillon. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Tourbillon wristwatch
Maker / attribution
Bvlgari
Reference
102720
Catalogue / lot identifier
284
Source-reported date
2017
Source-reported place
Switzerland
Source-reported serial
BGO 44 T TB SK

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial Architecture

The watch utilizes a 44mm octagonal case finished in titanium with a black DLC treatment. The design emphasizes transparency through the inclusion of sapphire components, which are integrated into the case construction to create a layered aesthetic. The dial is openworked, allowing for visibility into the movement architecture.

Elements such as the indexes and hands are finished with luminescent material. The luminescence is also applied to the side of the case and the power reserve indicator located on the transparent caseback. The crown, positioned at 3 o'clock, is designed to perform dual functions: time setting and movement winding, activated via a push action.

Evidence for this section
  • “titanium with a black D.L.C. treatment and sapphire crystals”
  • “44mm octagonal case”
  • “indexes, hands, case side, and even the power reserve indicator on the transparent caseback are coated with luminescent material”
  • “crown at 3 o’clock, which activates two functions—time setting and movement winding—through a simple push.”

Movement and Functionality

The watch is powered by the caliber BVL 206, a manual-winding movement designed specifically for this model. The movement is fully visible due to the openworked architecture and the sapphire case construction. A tourbillon regulator is positioned at 6 o'clock, which serves as a central feature of the display.

The movement includes a power reserve indicator located on the reverse side of the watch, which is also coated in luminescent material. This indicator is visible through the caseback, providing the user with an estimation of the remaining winding state.

Evidence for this section
  • “manual-winding tourbillon caliber”
  • “tourbillon at 6”
  • “power reserve indicator on the transparent caseback.”

Signatures and Provenance

The watch is identified by the reference 102720 and the case number BGO 44 T TB SK. It is marked as a limited edition, specifically piece 26 of 50. The Bvlgari signature is present on the dial, case, and movement components.

The watch was sold on December 7, 2017. The condition is reported as AAA Excellent with the case and dial in new condition.

Evidence for this section
  • “LIMITED EDITION 26/50”
  • “Case No. BGO 44 T TB SK”
  • “Year sold on 7 DEC, 2017”
  • “Signature dial, case and movement”

Open research questions

  • What is the specific duration of the power reserve for the BVL 206 caliber?
  • Are there variations in the sapphire components used across the 50 pieces produced?

Source evidence

Recorded claims and source quotations for Bvlgari Octo Roma Tourbillon Sapphire
FieldSource-reported valueSource quotation
MakerBvlgari“BVLGARI”
Reference102720“REF. 102720”
Serial numberBGO 44 T TB SK“Case No. BGO 44 T TB SK”
Limited edition number26/50“LIMITED EDITION 26/50”
CaliberBVL 206“Caliber BVL 206”
Case diameter44mm“Diameter 44mm.”
Movement typemanual winding“manual winding wristwatch”
Case materialtitanium with DLC treatment and sapphire“titanium with DLC treatment and sapphire”

Visible details

  • Case side features luminous accents
  • Tourbillon carriage visible at the 6 o'clock position
  • Power reserve indicator located on the caseback side of the movement
  • Deployant clasp finished with a black DLC coating

Research qualifications

  • The exact total thickness of the case is not specified
  • The specific composition of the luminous material is not identified

Photograph identity and source facts were screened before import; rights clearance remains pending.

Terms in this record

Glossary explanations for terms named in this object’s record.