Richard Mille, RM 021 collection
| Model: | RM 021 “Aerodyne” |
| Ref.: | 521.06.91 |
| Description: | Continuing the expansion and application of truly unique materials to watchmaking, the RM 021 is the first watch created with a composite baseplate utilizing a titanium exterior framework in combination with honeycombed orthorhombic titanium alumide and carbon nanofiber. CALIBER RM 021: manual winding tourbillon movement with hours, minutes, power reserve, torque indicator and function selector. Dimensions: length 48.18 mm x 39.70 mm (widest point) x 13.95 mm (thickest area). MAIN FEATURES (MANY OF WHICH ARE MAJOR TECHNICAL INNOVATIONS) MOVEMENT BASEPLATE OF TITANIUM & HONEYCOMBED ORTHORHOMBIC TITANIUM ALUMINIDE WITH CARBON NANOFIBER CORE Orthorhombic titanium aluminides are new group of alloys, developed from the main class of titanium aluminides, which possess a specific crystalline molecular structure ordered on the orthorhombic phase of Ti2AlNb. Its use within a honeycombed geometrical pattern was originally the subject of research by NASA for application as a core material of supersonic aircraft wings, where resistance to extremely high temperatures and torsion is paramount. The alloy in this honeycombed form has unparalleled stiffness, a low thermal expansion coefficient and exceptional torsion resistance. POWER RESERVE Circa 70 hours, indicated on the power reserve barrel located between 11 and 12 o’clock. TORQUE INDICATOR Utilizing a numeric scale located between 12 and 1 o’clock, the indicator provides visualization of the mainspring’s internal tension, allowing optimization of the movement’s timing. Below 53 dNmm, the spring is too slack; at the other extreme, above 65 dNmm, excessive tension can adversely affect the running of the movement and may even cause damage. VARIABLE INERTIA, FREE SPRUNG BALANCE The free-sprung balance gives better reliability in the event of shocks, movement assembly and disassembly, and also guarantees better chronometric results over an extended period of time. 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. BARREL PAWL WITH PROGRESSIVE RECOIL This device permits an appreciable winding gain (circa 20 %), especially during the start of winding. It also aids in the even distribution of the mainspring’s internal tension. OTHER FEATURES - Movement dimensions: 30.20 x 28.60 mm - Thickness: 6.35 mm - Tourbillon diameter: 12.30 mm - Balance wheel diameter: 10 mm - Number of jewels: 27 - Balance: GLUCYDUR, 2 arms, 4 setting screws, inertia moment 10 mg/cm2, angle of lift 53º - Frequency: 21,600 vph (3 Hz) - Balance spring: ELINVAR by NIVAROX - Torque indicator with reference measurement in dNmm - Shock protection: KIF ELASTOR KE 160 B28 - Stone setting in white gold - Barrel shaft in nickel-free chronifer (DIN x 46 Cr 13 + S) with the following characteristics: stainless- antimagnetic- suitable for tempering |
| Condition: | Brand new in box with papers & certificate |
| Price: | Swiss retail price 2011: |
