What separates a Clean Factory build from standard replica production is not visible in photographs — it shows in hand weight, bracelet resistance, bezel click definition, and the way the dial reads under varied light. The Roger Dubuis King series hollow double flying tourbillon has been sourced at Clean specification, and these qualities are present across every component.
Build Specifications
| Case | Stainless Steel, 45mm |
| Bezel | Fixed |
| Dial | seconds |
| Movement | Power reserve of 72 hours Double flying tou |
| Functions | Tourbillon |
| Power Reserve | ~48 hours |
| Crystal | Sapphire Crystal |
| Caseback | Solid |
| Water Resistance | 50m |
| Bracelet / Strap | Rubber Strap |
Movement & Performance
The tourbillon cage is assessed on a Clean Factory build for rotation consistency and visible finishing quality — both the structural execution of the cage itself and the movement architecture beneath it. At Clean specification the tourbillon functions as a genuine mechanical complication rather than a decorative approximation, and the finishing reflects the standard the mechanism demands.
Clean Plus production applies additional finishing controls at the bezel, dial, and case band stages — the three areas most visible during normal daily wear. On this build those controls are reflected in the consistency of finish across all three, regardless of viewing angle or light condition.

