Style: Men
Grade: Super Clone
Movement: Modified manual-winding true tourbillon
(VS Real: Calibre RM66 Tourbillon)
Gem: Synthetic ruby（VS Real: Natural high-purity ruby)
Function: Hour and minute dual-hand display, Manual-winding tourbillon
Length (lug-to-lug): 49.94 mm
Case width (excluding crown): 42.70 mm
Thickness: 16.8 mm（VS Real: 16.15 mm）
Weight: 127.2g (VS Real: 120 g) (includes Rubber Strap )
Dial: Brass + Extra Thick 5N Red Gold Vacuum Thick Gold-Plated Bone Hand
(VS Real: 5N Red Gold Engraved Bone Hand Rocking Gesture)
Bezel: Synthetic sapphire crystal (Al₂O₃) (VS Real:Synthetic sapphire crystal (Al₂O₃))
Side: Synthetic sapphire crystal (Al₂O₃) (VS Real:Synthetic sapphire crystal (Al₂O₃))
Case Back: Synthetic sapphire crystal (Al₂O₃) (VS Real:Synthetic sapphire crystal (Al₂O₃))
Crown: 5N Red Gold Extra Thick Electroplated Spiderweb Claw Shaped Crown
(VS Real: 5N Red Gold Spiderweb Claw Shaped)
Spline Screws: Grade 2 Titanium (VS Real: Grade 5 Titanium)
Shape: Tonneau
Strap: White Sulphur-Cured Rubber
Clasp: Grade 2 titanium Double Deployant Clasp
(VS Real: Grade 5 titanium Double Deployant Clasp)
Power Reserve: 48 H (VS Real: 72 H)
Water Resistance: 10 m（VS Real: 50 m)
Material: Synthetic sapphire crystal (Al₂O₃), Brass + Extra-thick 5N red gold plating, Grade 2 Titanium (Clasp &Screws)
Luminous: Luminous pointer
Box: Original papers, Original box, Original parts, Warranty, Limited edition
Description
Richard Mille RM 66 Full Sapphire Devil Horns Super Clone, True Flying Tourbillon, John Studio Custom Edition Replica Watch.
RM 66 Devil Horns and Full Sapphire
The gesture of pressing the thumb down over the middle and ring fingers while raising the index and little fingers is known as the Devil's Horns gesture. Originally from an ancient Mediterranean tradition called Malocchio, this gesture was used in ancient times to ward off evil spirits, curses, and bad luck. In the 1970s and 1980s, with the rise of heavy metal and hard rock music, this gesture was given a new definition, representing fervor, passion, and an uncompromising rebellious spirit. Therefore, wearing an RM 66 Devil Horns watch is like a super-rich person dyeing their hair a highly saturated blue for a dinner party. It showcases the ultimate in non-mainstream and unconventional style at the highest cost.
If the standard carbon fiber "Devil Horns" is a heavy metal lead singer roaring wildly on stage, then this RM 066 Full Sapphire is like permanently freezing that fervor within an absolutely pure crystal coffin. Utilizing cutting-edge sapphire crystal technology, it breaks through the shell's visual obstruction, exposing this visually striking red-gold "Devil Horns" to 360-degree holographic light and shadow. Join John Studio as we disassemble this super clone to see how it achieves a near-authentic feel at a low cost.
Craftsmanship: Genuine vs Super-Clone
Genuine Product
The bezel, middle section, and case back are all made of synthetic sapphire crystal (Al₂O₃), with a Mohs hardness of 9. Nothing in the world, except diamond, can scratch it. Sapphire is extremely hard and brittle, making it impossible to mold and cast. Therefore, it must undergo extremely slow, micron-level grinding and cutting using ultra-precise five-axis CNC machine tools for hundreds of hours, resulting in a very high scrap rate. After cutting, top craftsmen use diamond powder abrasive to perform layer-by-layer hand polishing for hundreds of hours. Finally, an anti-reflective, anti-glare coating is applied to ensure that light can penetrate the case without any blind spots. The movement is a custom Calibre RM66 Tourbillon, with its tourbillon located at 12 o'clock, unlike other models. The "Devil's Horn" hand bone, handcrafted in 5N red gold, features fine micro-blasting on the knuckles and grooves to recreate the weathered and grainy texture of withered bones; while the streamlined contours and edges of the knuckles are mirror-polished. Thanks to the fully transparent frame, this RM 66 Full Sapphire allows you to clearly see the back of the skeletal hands, shaped like eagle claws, firmly "grabbing" the mainspring barrel and the titanium alloy bridges of the movement. This mechanical skeletal look, revealed from the side and back, is a unique visual feast for the sapphire model.
This Top-Tier Replica
1, The bezel, middle layer, and case back are all made of synthetic sapphire crystal (Al₂O₃) with a Mohs hardness of 9, achieving 100% overlap with the genuine product in physical properties, optical transparency, and scratch resistance. Since the workshop lacks the high-precision five-axis ultrasonic CNC machining capabilities of the genuine product, they use a five-axis CNC slow-speed grinding machine. This involves reducing the machine's cutting speed to an extremely low level, requiring 4-5 times more time than usual to sculpt the tonneau shape's curvature, thereby reducing scrap rates and controlling costs. Finally, the three layers of the case are hand-polished using diamond powder abrasives of varying grits.
2, The Devil Horns Bone Hand is crafted from brass, and a high-precision 3D scanner is used to perform micron-level reverse 3D modeling of every joint and nail groove of the bone hand. Then, high-precision molds are used for initial casting. The resulting blank is usually quite rough, so the engraver will use a high-powered microscope to manually refine the knuckles of the bone hand with a carving knife, scraping out the granular texture of the bone, and then mirror-polishing the edges to restore the original's dual texture of "micro-blasting + mirror polishing". Finally, 5N red gold is used for a vacuum-sealed thick gold plating. Therefore, the bone hand of this RM 66 Full Sapphire super clone, encased in a fully transparent sapphire crystal case, achieves the same 3D holographic metallic reflection as the genuine product.
3, The movement is a custom-made manual-winding movement with the tourbillon module completely positioned at the 12 o'clock position. It also eliminates the front upper bridge, making the tourbillon appear to float in the air during operation. The movement's baseplate and bridges are made of Grade 2 titanium, with precise CNC geometric skeletonization and a black PVD sandblasting process, perfectly replicating the visual effect of "mechanical and artistic integration."
4, This RM 66 super clone boasts incredibly detailed features, including a crown composed of a thickened 5N red gold-plated spiderweb claw shape, a Miniature Skull Badge, Synthetic Ruby, and White Rubber O-ring. The 12 guitar pick-shaped hour markers are individually molded from Grade 2 titanium and hand-filled with Swiss-imported Super-LumiNova luminous coating, exhibiting a strong granular texture in low light.
Low-end Replica
The entire case is made of mineral glass (ordinary glass that has undergone a strengthening process). Due to the significant difference in refractive index compared to genuine glass, it produces a noticeable white reflection under light and is easily scratched. The hand is made of ABS plastic injection molding. Because no craftsmanship was used for post-processing micro-sculpting and finishing, the edges of the hand bones are very blunt and rigid. The surface of the hand uses an ultra-thin electroplating process. Under ultra-macro vision, one can even see bubbling, dullness, or missed plating in the electroplating layer deep in the finger gaps. The movement's ordinary balance wheel has simply been moved to the 12 o'clock position and a purely decorative disc has been installed to pretend that it is rotating. The balance wheel is a wheel that swings rapidly from side to side in place, while the tourbillon rotates 360 degrees as a whole.
Why use brass to make hand bones?
1, Brass's ductility and melting point make it ideal for extremely precise die casting and micron-level secondary CNC machining. After 3D scanning data is transmitted to the machine tool, brass can perfectly reproduce the minute details of knuckles and bone grooves without easily chipping.
2, After the initial blank is produced, the sculptor needs to manually refine the bone texture with a carving knife. Brass's moderate hardness allows the craftsman to wield the carving knife swiftly under a microscope, creating highly textured, mirror-like edges.
3, 5N refers to 18K gold with the "reddest color and highest copper content." 5N red gold (75% gold + 4% silver + 21% copper, some formulas even have 25% pure copper) has a molecular structure that is very suitable for subsequent 5N red gold vacuum electroplating, exhibiting extremely strong adhesion and resistance to peeling. Therefore, by simply adding a small amount of tungsten steel to other concealed parts, this RM 66 Full Sapphire super clone watch achieves a weight of 127.2g (the genuine product weighs 120g).
How do I spot the difference between this super clone and a real one?
Although both the genuine and super-cloned versions use synthetic sapphire crystal (Al₂O₃) with a Mohs hardness of 9 for the entire case, maintaining consistency in physical properties, optical transparency, and scratch resistance. The low-speed five-axis CNC machine used to cut the replica case has lower precision, and the manual polishing with diamond powder cannot achieve the hundreds of hours of layer-by-layer hand polishing required. Therefore, under ultra-macro lighting, the surface of the sapphire crystal case will show extremely fine water ripples or tool marks. If the side frame of the clone is observed under strong light, a slight white halo of refraction may be visible.
Daily Care Guide
1. Avoid strenuous activity: While the John-Studio Super Replica series features genuine tourbillon movements and the top-of-the-line KIF shock-resistant system—designed to faithfully reproduce the 1:1 visual aesthetics—the shock-resistant system only protects the balance wheel assembly; the overall shock resistance of the watch is a more complex engineering feat. Wearing them during strenuous activities (such as badminton, basketball, or golf) can subject them to strong, sudden impacts. Such impacts could cause the tourbillon axle to break, the balance wheel to seize, or the hairspring to deform or shift.
2. Do not submerge in water: In reality, whether it is the genuine article or this RM 66 full sapphire super clone, the watch is designed to withstand only everyday splashes and sweat, Do not wear it while swimming, showering, or exposing it to warm water. This is because hardness is not synonymous with toughness; sapphire crystal has a crystalline structure and possesses absolutely no elasticity. If one were to attempt to achieve high water resistance by overtightening the titanium screws on the three-layer sapphire case, the material's extreme rigidity—preventing it from deforming to dissipate localized torque—would cause the case to shatter instantly like glass during the tightening process.
Manufacturer: John Studio Levels Up
Product code: RM 66 Full Sapphire Devil Horns Super Clone
Material provider: Swiss
Assembly Origin: China
Production Date: February 2026
