NEW Factory Roger Dubuis Excalibur RDDBEX0938 Flying Tourbillon 42mm
The NEW Factory Roger Dubuis Excalibur RDDBEX0938 is a 42mm mechanical flying tourbillon watch featuring a colorful contemporary design, 316L stainless steel case, sapphire crystal, natural rubber strap, and the latest V4 configuration of the RD509SQ manual-winding movement.
The movement provides hours and minutes together with an exposed flying tourbillon, while its supplied power-reserve specification is approximately 50 hours.
42mm Stainless Steel Case
The RDDBEX0938 uses a 42mm case constructed from 316L stainless steel.
The 42mm dimensions create a more compact case profile than larger 45mm Excalibur configurations while retaining sufficient visual space for the open mechanical architecture and flying tourbillon.
The stainless steel exterior also provides a contrasting frame around the colorful elements of this model.
Colorful Excalibur Design
Color is one of the defining visual characteristics of this RDDBEX0938 configuration.
Rather than relying exclusively on conventional black, silver, or metallic finishes, this version introduces brighter color elements into the mechanical Excalibur architecture.
The combination of color and exposed mechanical components gives the model a distinctly different visual identity from titanium or carbon-fiber Excalibur tourbillon configurations.
RD509SQ V4 Manual-Winding Movement
The RDDBEX0938 is powered by the V4 version of the RD509SQ manual-winding mechanical movement.
Its primary functions include:
* Hours
* Minutes
* Flying tourbillon
The movement has an approximate 50-hour power-reserve specification.
Because the RD509SQ uses manual winding, energy is supplied mechanically through the crown rather than through an automatic winding rotor.
Flying Tourbillon
A flying tourbillon forms the principal mechanical complication of the RDDBEX0938.
Unlike a conventional tourbillon architecture with a visible upper bridge spanning the rotating cage, a flying tourbillon is supported from one side of the mechanism. This creates a more open view of the rotating assembly from the dial side.
The exposed tourbillon therefore functions as both a mechanical component and a central visual feature of the watch.
Sapphire Crystal
The watch is fitted with a sapphire crystal.
Its transparent construction provides a clear view of the dial, colorful design elements, and exposed flying-tourbillon mechanism.
Sapphire also provides a hard viewing surface suitable for the mechanically focused architecture of the Excalibur collection.
Natural Rubber Strap
The RDDBEX0938 is paired with a natural rubber strap.
The strap is shaped to connect closely with the lug area, creating an integrated transition between the 42mm case and the flexible rubber construction.
Its sport-oriented appearance also complements the contemporary color treatment of this configuration.
316L Stainless Steel Clasp
The rubber strap is secured by a 316L stainless steel clasp.
Using stainless steel for both the case and clasp creates a consistent material relationship between the primary external components of the watch.
Technical Specifications
Specification Details
Factory NEW Factory
Brand Roger Dubuis
Collection Excalibur
Reference RDDBEX0938
Case Diameter 42mm
Case Material 316L Stainless Steel
Movement RD509SQ V4
Movement Type Manual-Winding Mechanical
Complication Flying Tourbillon
Power Reserve Approx. 50 Hours
Hours Yes
Minutes Yes
Crystal Sapphire Crystal
Strap Natural Rubber
Clasp 316L Stainless Steel
RDDBEX0938 Mechanical Character
The RDDBEX0938 places the flying tourbillon and RD509SQ V4 movement at the center of its mechanical identity.
The absence of an upper tourbillon bridge creates a more open presentation of the rotating mechanism, while the colorful design elements introduce additional contrast around the mechanical structure.
The 42mm stainless steel case, sapphire crystal, rubber strap, and exposed tourbillon combine mechanical and sport-oriented elements within a single configuration.
Wearing and Care
The RD509SQ V4 is a manual-winding movement. Wind the watch smoothly through the crown and stop applying additional force when noticeable resistance develops.
Tourbillon mechanisms contain numerous small moving components and should be protected from strong impacts and powerful magnetic fields.
Use a clean microfiber cloth for routine cleaning of the stainless steel case and sapphire crystal. The rubber strap can be cleaned gently with a soft damp cloth and allowed to dry naturally.
Frequently Asked Questions
What is the reference number of this NEW Factory Excalibur?
The reference is RDDBEX0938.
What is the case size?
The RDDBEX0938 has a 42mm case.
What material is used for the case?
The case is made from 316L stainless steel.
What movement does the RDDBEX0938 use?
It uses the V4 version of the RD509SQ manual-winding mechanical movement.
Is this a flying tourbillon?
Yes. The RDDBEX0938 incorporates a flying tourbillon as its principal mechanical complication.
What is the power reserve?
The supplied power-reserve specification is approximately 50 hours.
What functions does the watch have?
The movement provides hours, minutes, and a flying tourbillon.
What type of crystal does it use?
The watch uses a sapphire crystal.
What type of strap is fitted?
It is fitted with a natural rubber strap.
What material is used for the clasp?
The clasp is made from 316L stainless steel.
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