RM 57-03 Tourbillon Sapphire Dragon

The RM 57-03 Tourbillon Sapphire Dragon is the pinnacle of one of the most popular special items of the brand. The artistic creation of sapphire and gold is incorporated into the tourbillon movement. This is an unprecedented feat that requires the combination of complex sapphire processing procedures and exquisite and poetic carving art. The brand excels in bold ways to bring together seemingly unrelated worlds.

Movement RM57-03
The manual winding tourbillon movement has hour and minute functions.

Base and bridge made of grade 5 titanium

The manufacture of these grade 5 titanium alloy parts enables the entire assembly to have high rigidity and precise surface flatness, which is essential for the perfect function of the gear train.

The skeletonized bottom plate and bridge have undergone strict and complete verification tests to optimize their resistance capacity.

Dragon entwined in motion

Dragon is a mythical animal that originated in a fictional world. It is inseparable from Eastern culture and has multiple meanings. Here, it is a symbol of perseverance and success, and a symbol of the power and strength that make it an essential element. This sturdy and reassuring concept of robustness can be seen in the bearings of the dragon that firmly surrounds the hand-wound tourbillon movement, which determines the creative craftsmanship, followed by the engraver of Olivier Vaucher (the main name of the Geneva engraving), and Of cooperation. Richard Mille (Richard Mille) movement and external engineers in this complex work.

As a fantasy creature flowing in the water, the dragon harmoniously wraps the yin of sapphire and the golden yang associated with the liquid element, the latter carrying the opposite heat and the positive connotation of the sun.

Sapphire uses this material in Richard Mille’s special place to make the most complex luxury watches replica cases and movement components. Its transparency comes from the purity of alumina crystals (Al2O3), and its 1,800 Vickers hardness makes it an exciting substance. Although Richard Mille’s sapphire case is usually ground, in this case, the technology was put on hold to facilitate the use of laser micro-cutting technology, which was used in the project On specific machines. This is done to obtain extremely precise details and curves of the workpiece, while avoiding undesirable physical and chemical reactions. Thanks to countless hours of research and development and computer-aided design (CAD) programming, the building became reliable and the weak links were eliminated.

To carve the dragon, Olivier Vaucher and his team developed new hand polishing and finishing techniques to enhance the natural transparency of sapphires. The head and feet carved in red gold can also highlight the crystal texture of the sapphire and the volume of the object. The tiny details of the scales are the result of a long and exquisite gold powder painting process, while applying them to the tongue and eyes of the dragon (giving it a firm appearance), adding the ultimate artistic meaning to the work.

Rotate the barrel quickly (6 hours per revolution instead of 7.5 hours)

This type of barrel has the following advantages:
• Regularly eliminate the adhesion of the internal clockwork to improve performance
• Provides an excellent spring increment curve, and has an ideal power reserve/performance and regularity ratio.

Free spring balance with variable inertia

The free spring balance wheel provides better reliability during assembly or disassembly of the movement when vibration occurs, and it also guarantees better timing results over a long period of time.

Sports characteristics

Movement size: 32.10 x 30.30 mm
Thickness: 5.27 mm
Tourbillon diameter: 12.40 mm
Balance wheel diameter: 9.12 mm
Jewelry: 19
Balance wheel: Glucydur®, 2 arms and 4 fixing screws, moment of inertia 11.50 mg•cm2, lifting angle 53º
Frequency: 21,600 vph (3 Hz)
Hairspring: elinvar from Nivarox®
Shockproof: KIF Elastor KE 160 B28
Barrel shaft: Nickel-free Chronifer® (DIN x 46 Cr 13 + S) has the following characteristics: stainless steel-antimagnetic-suitable for tempering

The barrel-shaped case is composed of three parts and is highly curved, which means that the watch is comfortable to wear, but it is time-consuming in terms of production and quality control.

All timepieces of Richard Mille (copy Richard Mille) have ergonomic design and visually unique curvature, so absolute precision and metal tension-free. These requirements of the case design are based on the value of one year of research and development.

The waterproof depth of the triple shell is 50 meters and is sealed by 2 nitrile O-rings. The case is equipped with 20 grade 5 titanium spline screws and 316L stainless steel wear-resistant washers.



-Hand-polished bevel cut
-Micro-jet grinding section
-Brushed or polished outer surface

Steel parts

-Micro-blasted surface
-Satin finish
-Hand-polished bevel cut
-Hand-painted upper surface
-Matte brush strokes on the bottom
-Vertical hand-drawn strokes on the side
-Polish sink


-Chamfer chamfering with diamond tools
-Smooth face
-Rhodium plating (before cutting teeth)
-Minimize the correction of the wheels to maintain geometry and performance

Other features

Progressive recoil barrel

This device can achieve favorable winding gains (approximately 20%), especially during winding start-up. This also helps to ensure that the internal tension of the mainspring is evenly distributed.

Centrally inwardly contoured hair tube teeth and third wheel pinion

The central involute profile of the bobbin teeth and pinion gear provides an optimal pressure angle of 20°. This promotes effective rotational movement and compensates for possible changes in the meshing of a moving train, thus ensuring excellent torque transmission and significantly improving performance.

Spline screws in grade 5 titanium for bridging and housing

This allows better control of the torque applied to the screw during assembly. Therefore, these screws will not be affected by physical operations during assembly or disassembly, and can be well aged.BUY fake men watches