A NATURAL ADDITION
RM 57-03 TOURBILLON SAPPHIRE DRAGON
DRAGON ENTWINED IN THE MOVEMENT
The dragon, a mythical animal arising from an ancestral imaginary world and indissociable from Oriental culture, has multiple meanings. Here, it is a symbol of perseverance and success as well as of the power and strength that make it a master of the elements. This notion of robustness and reassuring solidity, visible in the bearing of the dragon that firmly encircles the manually-wound tourbillon calibre, dictated the creative process followed by the engravers at Olivier Vaucher—a major name in engraving in Geneva—working in collaboration with the Richard Mille movement and exterior engineers on this complex endeavour.
As a fantastical creature moving through the water, the dragon harmoniously encapsulates the Yin of sapphire, associated with the liquid element, and the Yang of gold, which carries the opposing heat and positive connotations of the Sun.
FAST-ROTATING BARREL (6 hours per revolution instead of 7.5 hours)
This type of barrel provides the following advantages:
• The phenomenon of periodic internal mainspring adhesion is significantly diminished, thereby increasing performance
• Provision of an excellent mainspring delta curve with an ideal power reserve/performance and regularity ratio.
FREE-SPRUNG BALANCE WITH VARIABLE INERTIA
The free-sprung balance offers better reliability in the event of shocks, movement assembly or disassembly, and also guarantees better chronometric results over an extended period of time.
Movement dimensions: 32.10 x 30.30 mm
Thickness: 5.27 mm
Tourbillon diameter: 12.40 mm
Balance wheel diameter: 9.12 mm
Balance wheel: Glucydur®, 2 arms and 4 setting screws, moment of inertia 11.50 mg•cm2 , angle of lift 53º
Frequency: 21,600 vph (3 Hz)
Balance spring: elinvar by Nivarox®
Shock protection: KIF Elastor KE 160 B28
Barrel shaft: nickel-free Chronifer® (DIN x 46 Cr 13 + S) with the following characteristics: stainless - antimagnetic - suitable for tempering