Pre-Owned Roger Dubuis Excalibur Spyder Skeleton Flying Tourbillon Titanium | Black Tag Watches

Pre-Owned Roger Dubuis Excalibur Spyder Skeleton Flying Tourbillon Titanium — Box, Papers & Hallmark of Geneva Certificate (Ref. RDDBEX0479)

Only four maisons in Switzerland hold the Hallmark of Geneva. Only one applies it to every watch it produces. That maison has spent three decades using the certification as a floor rather than a ceiling.

Available now at Black Tag Watches (Aventura, Florida), this 2019 example — reference RDDBEX0479 — is cased in titanium with a grey and black skeleton dial, powered by the manufacture calibre RD505SQ, and offered complete with its original box, papers, and Poinçon de Genève Hallmark certificate.

What Is the Roger Dubuis Excalibur Spyder Skeleton Flying Tourbillon?

The Only Maison That Certifies 100% of Its Production

Roger Dubuis was founded in 1995 in Geneva by Roger Dubuis — a fourteen-year Patek Philippe complications specialist before his own maison — and the Italian designer Carlos Dias. The maison is currently one of only four in Switzerland producing watches under the Poinçon de Genève certification, and — uniquely — the only manufacture in the world that applies the certification to one hundred percent of its production. Every Roger Dubuis watch, from entry references to hyper-complications, carries the Hallmark of Geneva. This Excalibur Spyder Skeleton Flying Tourbillon is offered with its original Poinçon certificate as part of the delivery — a documentary fact that materially separates it from tourbillons that carry no equivalent independent finishing standard.

An Architecturally Committed Skeleton Tourbillon

The pre-owned Roger Dubuis Excalibur Spyder Skeleton Flying Tourbillon RDDBEX0479 is the titanium execution of one of the maison’s more architecturally-committed skeleton tourbillons. This is not a conventional dial with a tourbillon aperture cut into it — it is a watch built as movement architecture first, with the case and flange continuing the skeletonisation outward from the calibre itself. For collectors of pre-owned flying tourbillons, the RDDBEX0479 represents the class of reference where the Poinçon standard is legible under close inspection rather than merely asserted on paper.

Dial & Case Design: Titanium, Astral Skeleton Architecture

Case Construction and the Openworked Flange

The 45mm case is constructed in titanium and stands 14mm thick — a specification made possible by both the flying tourbillon architecture, which requires no upper bridge, and by the openworked case flange that continues the skeletonisation from the movement out through the case itself. The bezel is polished titanium; the flange is openworked; the crown is signed. The skeletonisation is not confined to the movement — it is a design gesture that runs from the calibre through the flange to the case edge, producing a watch where the boundary between movement and case is deliberately blurred.

The Skeleton Dial and Off-Centre Tourbillon

The dial reads in grey and black across a fully skeletonised topography: the manufacture’s signature Astral Skeleton bridge geometry, patented for its five-pointed star architecture, sits across the field with the mainplate reduced to its structural minimum. The flying tourbillon cage — shaped as the maison’s signature Celtic cross — rotates through a 60-second cycle and sits deliberately between 7 and 8 o’clock, an off-centre placement that gives the skeleton composition dynamic asymmetry rather than the visual conservatism of a 6 o’clock tourbillon. Slim faceted hour and minute hands are the only elements permitted to break the openworked view. What is not on the dial is the point of the reference: there is no dial. There is only movement architecture.

Movement: Manufacture Roger Dubuis Calibre RD505SQ

The Foundational Skeleton Tourbillon Calibre

Inside the Excalibur Spyder is the manufacture Roger Dubuis calibre RD505SQ — a hand-wound flying tourbillon movement comprising 179 parts across 19 jewels, beating at 21,600 vph (3 Hz), with a 60-hour power reserve. The RD505SQ is the maison’s foundational skeleton tourbillon calibre — “SQ” for squelette — developed entirely in-house in the Meyrin manufacture, adjusted in six positions, and finished across every visible surface to the requirements of the Poinçon de Genève. The flying tourbillon construction, which suspends the cage from a single lower bearing rather than bridging it from above, is what allows the skeleton composition its clean top-side visibility — and it is one of the more mechanically demanding executions of the complication.

Two Certifications: Geneva Seal and COSC

The Hallmark of Geneva requires that every component, visible or otherwise, be finished to specific criteria of bevelling, polishing, and construction, and that assembly, casing, and regulation take place entirely within the Canton of Geneva. Roger Dubuis has publicly stated that Poinçon-compliant production requires roughly forty percent more manufacturing time than an equivalent non-certified movement. The RD505SQ carries a COSC chronometer certification alongside the Poinçon — a second, independent certification of accuracy that the maison layers on top of the finishing standard rather than instead of it. Two independent certifications on a single flying tourbillon movement is a rare specification at any price point.

Movement Specifications

Specification

Detail

Calibre

Roger Dubuis RD505SQ, manual

Complication

1-minute flying tourbillon

Components

179 parts, 19 jewels

Frequency

21,600 vph (3 Hz)

Power reserve

60 hours

Adjusted

Six positions

Certifications

Poinçon de Genève + COSC

Caseback

Sapphire display

Condition, Provenance & Certificates

Condition, Provenance & Certificates

Provenance is unusually complete. The watch is offered with its original Roger Dubuis presentation box, instruction booklet, Poinçon de Genève Hallmark certificate, and certificate of authenticity and warranty dated 2019 — the assembled delivery signals typical of a serious Roger Dubuis full set. The original presentation box shows some minor pilling on the interior lining; the watch itself and all documentation are unaffected. For a Poinçon-certified flying tourbillon at this level, complete original documentation is the meaningful provenance signal — Roger Dubuis service centres will authenticate and service the watch against its Poinçon serial and its certificate of authenticity as the primary reference points.

Condition and Accessories

Detail

Information

Condition

Mint

Box

Roger Dubuis box (minor lining pilling)

Papers

Instructions, Poinçon certificate, warranty 2019

Strap

Black rubber

Buckle

Titanium folding

Full Specifications — Roger Dubuis Excalibur Spyder Flying Tourbillon RDDBEX0479

Specification

Detail

Brand

Roger Dubuis (Meyrin, Geneva)

Collection

Excalibur Spyder Skeleton Flying Tourbillon

Reference

RDDBEX0479

Year

2019

Case

Titanium, 45mm

Thickness

14mm

Bezel

Polished titanium

Flange

Openworked

Dial

Grey and black, fully skeletonised, Astral Skeleton

Complication

1-min flying tourbillon, Celtic cross cage, 7–8 o’clock

Movement

RD505SQ, hand-wound flying tourbillon

Components

179 parts, 19 jewels

Frequency

21,600 vph (3 Hz)

Power reserve

60 hours

Adjusted

Six positions

Certifications

Poinçon de Genève + COSC

Caseback

Sapphire display

Strap

Black rubber

Buckle

Titanium folding

Condition

Mint

Box & Papers

Full set, dated 2019

Why Buy a Pre-Owned Roger Dubuis Excalibur Spyder Flying Tourbillon?

The Geneva Seal as a Substantive Signal, Not Marketing

The Excalibur Spyder Skeleton Flying Tourbillon occupies a specific corner of the contemporary skeleton-tourbillon secondary market — recognised by collectors who read Poinçon de Genève certification as a substantive quality signal rather than marketing decoration, and largely uncatalogued by buyers whose category discipline stops at the volume tourbillons from the larger Genevan houses. That distinction matters. Roger Dubuis has spent three decades using the Hallmark of Geneva as its production floor rather than as a marketing ceiling — and the flying tourbillon in a skeletonised architecture is exactly the class of reference where the difference is legible under close inspection.

A Firming Reference with Provenance Beyond Dispute

Auction results at Christie’s, Sotheby’s, and Antiquorum for RD505SQ-family Excalibur references have firmed steadily since the calibre’s introduction, and full-set examples with the Poinçon certificate physically present in the delivery are the ones that trade first. Against contemporary flying-tourbillon retail from the volume Genevan houses — and against the current Roger Dubuis catalogue on skeleton tourbillon references — this Excalibur Spyder in titanium offers direct entry into a 100% Poinçon-certified manufacture at a level that rewards horological literacy over badge recognition, with a full original delivery and certificates that establish provenance beyond dispute.

Available at Black Tag Watches — Aventura, Florida

Black Tag Watches is a pre-owned luxury watch dealer based in Aventura, FL, specialising in rare, certified, and fully documented timepieces from Roger Dubuis and the world’s leading Swiss manufactures.

View the Roger Dubuis Excalibur Spyder Skeleton Flying Tourbillon Titanium — Full Details & Pricing

A titanium, fully-skeletonised, flying-tourbillon Excalibur Spyder — from the only maison in the world that applies the Hallmark of Geneva to every watch it makes.

Posted in Black Tag Watches Blog.
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