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Description
YSF Roger Dubuis Excalibur Double Flying Tourbillon RDDBEX0397
A remarkably ambitious replication that successfully integrates twin functioning flying tourbillons within a meticulously skeletonized 45mm rose gold plated case.
Powered by Custom RD001 Manual Winding Caliber
The architecture of this movement features two distinct tourbillon carriages, both actively regulating the geartrain rather than serving purely cosmetic functions. The skeletonized bridges are finished with perlage and chamfered edges, attempting to mimic the rigorous Geneva Seal standards of the genuine article. Due to the dual-escapement design, the gear train requires precise tolerances to maintain synchronization across the differential.
±10–15 s/day. As a complex manual clone driving two tourbillon carriages, positional variance is expected to be slightly higher than standard three-hand automatic movements.
- ✅ Power Reserve: Approximately 36 hours
- ✅ Complications: Double flying tourbillon, hours, minutes
- ✅ Winding Direction: Unidirectional (Manual)
Technical Specifications
Measuring 45mm in diameter and 13mm thick, the case features the signature triple-lug Excalibur design and a crisp polished/brushed alternating finish.
The dial is essentially the movement mainplate itself, accented with subtle warm brown tones and applied Roman numerals on the flange. Lume application on the skeletonized gold hands is precise.
The iconic notched bezel is sharply machined, providing the aggressive visual depth that characterizes the Excalibur lineage.
Integrated seamlessly into the triple-lug case, secured by a well-machined 18K rose gold plated deployant clasp with crisp RD engravings and smooth tolerances.
Why YSF for This Reference?
Many collectors ask: “Why not BBR Factory?”
While BBR produces excellent tourbillons, the YSF iteration of the RDDBEX0397 offers superior stability in the synchronization of the two tourbillon carriages. The skeletonized star bridge on the YSF also exhibits slightly cleaner chamfering under macro inspection, minimizing the visual tells typically associated with clone skeleton movements.
Full Disclosure: The 18K rose gold plating, while rich, can appear slightly more coppery under direct sunlight compared to the proprietary pink gold alloy used by Roger Dubuis. Additionally, the manual winding mechanism requires careful handling; forcing the crown when fully wound risks mainspring failure.
Data Sheet
| MODEL REFERENCE | RDDBEX0397 |
| FACTORY / VERSION | YSF Edition |
| MOVEMENT | Custom RD001 Manual Winding |
| CASE MATERIAL | 18K Rose Gold Plated 316L Steel |
| WEIGHT & THICKNESS | [unconfirmed] | 13.0mm |
| CRYSTAL & LUME | Scratch-Proof Sapphire | Standard Super-LumiNova |
| DIMENSIONS | 45.0mm × [unconfirmed] × 13.0mmManual measurements — minor tolerances apply. |
| WATER RESISTANCE | 30m stated — professional pressure test recommended before swimming |
Collector Q&A
Q: Do both tourbillons actually function on this YSF replica?
A: Yes, the custom RD001 clone movement features two fully functional flying tourbillons. Both carriages rotate and actively regulate the timekeeping via a differential system, rather than acting as static visual elements.
Q: How should I wind the manual RD001 movement safely?
A: Wind the crown slowly and consistently. Because this movement drives two tourbillon escapements, you will feel distinct resistance. Stop winding immediately when the crown feels tight to avoid breaking the mainspring. Power reserve is roughly 36 hours.
Q: Is the strap genuinely American crocodile leather?
A: Yes, this specific YSF release utilizes genuine American crocodile leather, significantly improving the tactile feel and visual scale patterns to match the genuine RDDBEX0397 compared to standard embossed calfskin.
Q: What is the primary visual tell on this replica compared to the genuine?
A: The most notable tell lies in the microscopic finishing of the skeletonized bridges. While YSF does an excellent job with chamfering, it cannot fully replicate the hand-finished Geneva Seal (Poinçon de Genève) interior angles and black polishing found on the genuine piece.
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