At Richard Mille, the fact that a tremendous challenge has been won is never a valid reason to stand still and be complacent. The introduction of the RM 056 Sapphire Tourbillon Split Seconds Chronograph three years ago was a watchmaking milestone of technical achievement; never before had such a complex case design for such an intricate movement been manufactured in pure sapphire. This debut was followed by the RM 56-01, which put the stakes even higher with a baseplate, bridges and third wheel additionally created from sapphire.
Created expressly for the Watches & Wonders event in Hong Kong is presented with the magnificent RM 56-02 Sapphire Tourbillon and its new movement, taking cues from the mechanical architecture of the RM 27-01 Rafael Nadal and its cable suspended movement. By incorporating this cabled movement design within a world of transparent sapphire, an ultimate expression of weightlessness and transparency is evoked within the world of extreme horology.
Available in a limited edition of 10 examples worldwide
CALIBER RM56-02 Manual winding tourbillon movement with hours, minutes
TENSION INDICATOR Located below 12 o'clock, a separate indicator allows the visual inspection of the cable tension. A titanium lever with an indicator arrow ensures that one can visually control that the cable is operating within designated norms.
CABLE-SUSPENSION MECHANISM The baseplate of the RM 56-02 is attached to the case by a single braided steel cable, with a diameter of just 0.35 mm. The cable is held taut by a tensioners (located at 9 o’clock) and pulleys, which act like pylons positioned at the four corners of the movement. The cable is fixed just near the 3 o'clock position.
BARREL, TOURBILLON AND CENTER BRIDGES IN SAPPHIRE The tourbillon, barrel and center bridges are made from sapphire crystal. The rhomboid crystalline structure of synthetic sapphire crystal Al2O3 has a high melting point of 2,303 Kelvin and a linear-expansion minimal thermal coefficient (6 x 10-6), which combined offer exceptional stability even in the most extreme conditions. Its resistance to abrasion is also eight times greater than that of steel.