RM 88
The smile, a universal language
A yellow circle, two oval eyes, a wide upturned mouth … The Smiley, drawn by Franklin Loufrani just over 50 years ago, has become an established symbol in the collective consciousness. It serves as the embodiment of positivity, joy and sharing and has played a major role at the heart of pop culture across several creative generations. This leading role was enough for the teams at Richard Mille to launch into the creation of an emotion-driven watch emphasising all these values.
RM 88 Automatic Winding Tourbillon Smiley
IN-HOUSE CALIBRE CRMT7
Skeletonised automatic winding tourbillon movement with hours, minutes and function indicator.
Limited edition of 50 pieces
POWER RESERVE
Around 50 hours (± 10%)
BASEPLATE AND BRIDGES MADE OF GRADE 5 TITANIUM
Microblasted grade 5 titanium with PVD treatment lends great rigidity to the baseplate and the bridges, as well as the precise surface flatness, essential for perfect functioning of the gear train.
Grade 5 titanium is a biocompatible, highly corrosion-resistant and remarkably rigid alloy, which enables the gear train to func¬tion effortlessly.
The alloy is 90% grade 5 titanium, 6% aluminium and 4% vanadium. This combination further increases the material’s mechanical properties, which explains its frequent use in the aerospace, aeronautics and automotive industries.
The skeletonised baseplate and bridges were subjected to intensive and complete validation tests to optimise their resistance capacities.
SMILEY
The striking Smiley figure in yellow gold, micro-blasted and painted, presides over this landscape from atop the additional motion-work bridge in microblasted ARCAP® with polished anglage and drawn edges. Featuring a larger echo of the rainbow motif, it gleams with faint reflections thanks to hand-applied varnishes, contrasting with its anthracite-coloured rhodium plating.
No effort has been spared in the finishing, down to the tiniest detail of each element in this display. The cocktail glass is an assembly of four parts, all in gold. The umbrella, the olive (1.7 mm in height), the 0.4 mm-diameter grooved straw – all polished – and the glass itself, its base micro-blasted to convey its chill, weigh a total of just 0.4 g. The gold flower above it is mirror-polished, its petals brushed and rhodium-plated. The pink flamingo, 0.2 g of red gold, also undergoes multiple processes: its wings are polished and their feathers traced with the tip of a Dégussit grinding stone; its eye is made using the smallest beading tool in existence; its pedestal is micro-blasted and the part that depicts the grass and water is polished. The component is given a metallic pink PVD coating before the beak is painted black using a brush.
The quest for perfection is ever-present, as demonstrated by the green PVD-coated leaves, the microblasted and polished surface of the pineapple, the microblasted spines of the cactus in yellow gold, polished one by one to remove the PVD coating, and the sun, in microblasted gold with polished rays. In keeping with watchmaking tradition, all finishing operations on the RM 88 Smiley are carried out by hand.
FUNCTION INDICATOR
In a manner similar to that of a car’s gearbox, the function indicator allows one to see the winding and hand-setting positions as the crown is pulled out. The active position is indicated via a hand at 3 o’clock.
FREE-SPRUNG BALANCE WITH VARIABLE INERTIA
This type of balance wheel represents the ultimate in innovation. It guarantees greater reliability when subjected to shocks and during movement assembly or disassembly, resulting in better chronometric results over time.
The regulator index is eliminated and a more accurate and repeatable calibration is possible thanks to 4 small, adjustable weights located directly on the balance.
ROTOR IN 3N YELLOW GOLD
With OneWay® winding system and ceramic ball bearings.
MOVEMENT CHARACTERISTICS
Movement dimensions: 32.10 x 29.00 mm
Thickness: 4.80 mm
Jewels: 23
Balance: CuBe, 4 arms, 4 setting weights, moment of inertia 7.5 mg•cm2, angle of lift 50°
Frequency: 28,800 vph (4 Hz)
Balance spring: AK3
Shock protection: INCABLOC 908.22.211.100 (transparent)
CASE IN ATZ WHITE CERAMIC AND RED GOLD
Such splendour of colour and scenography, both front and back, deserved a setting that would do justice to the composition.
The design and execution of the watch demonstrate a holistic approach to conception of the movement and the case. As a result, everything has been constructed according to extremely rigorous specifications. For example, a casing ring is no longer used, and the movement is mounted on chassis mounting rubbers (ISO SW) fixed by titanium screws.
The bezel and caseback are in ATZ white ceramic. This is made from tubes of aluminium oxide powder injected at a pressure of nearly 2,000 bars. This high-pressure injection increases rigidity by 20 to 30% and reduces the material’s porosity to an absolute minimum. ATZ is known for its high scratch resistance (1,400 Vickers) and unchanging colour. Next to diamond, it is one of the hardest materials in the world. Long and difficult machining using diamond tools is required to create a perfect example of this complex, curved bezels and microblasted finish.
The caseband is made of 18K 5N red gold.
The tripartite case is water resistant to 50 metres, ensured by 2 Nitrile O-ring seals. The case is assembled with 12 grade 5 titanium spline screws and abrasion-resistant washers in 316 L stainless steel.
Finishing
Movement
• Hand-polished anglage
• Hand-polished stepped bevelling
• Microblasted milled section
• Microblasted sinks
• PVD treatment for the baseplate and bridges
Steel parts
• Satin-finished surfaces
• Hand-polished anglage
• Hand-polished sinks
• Burnished sections
Wheels
• Diamond-polished sinks
• Circular decorations on the front surfaces
• Rhodium plating (before cutting the teeth)
• Minimal corrections applied to the wheels in order to preserve geometry and performance
Other features
FAST-ROTATING BARREL (5 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.
GEAR TEETH PROFILE
The entire going train of the watch, the primary transmitter of power throughout the movement, utilises a pressure angle of 20˚ for the teeth of the wheel. This system equalises any discrepancies that might arise between the centre of each wheel, for instance during thermal changes or normal use, and promotes an excellent transmission of torque to the balance wheel, thus supporting superior chronometric characteristics.
SPLINE SCREWS IN GRADE 5 TITANIUM FOR THE BRIDGES AND CASE
This permits better control of the torque applied to screws during assembly.
These screws are unaffected by physical manipulation during assembly or disassembly and age well.