Richard Mille, RM 020 collection
| Model: | RM 020 TOURBILLON POCKET WATCH |
| Ref.: | 520.6A.91 |
| Description: | Part of a series of new horological advances realized by Richard Mille was the successful creation of a non-metallic movement baseplate, the first in watchmaking history. The new material utilized was carbon nanofiber, and the innovation was first tested with great success in the RM 006, an experimental model. The technical results were remarkable and Richard Mille therefore decided to expand the use of carbon nanofiber further throughout his tourbillon range. Progress in this important area of horological research begun by Richard Mille has now opened up a new era of applying new materials in the watchmaking industry. The RM 020 furthers this development by being the first pocket watch ever built using a baseplate structure of carbon nanofiber. The RM 020 is supplied together with a special type of titanium watch chain comprising a new design of fast release/attach mechanism. In the tradition of fine pocket watches of the past, the RM 020 can also be used as a pendulette de bureau with a specially designed stand in complementary style. CALIBER RM 020 : Manual winding tourbillon movement with hours, minutes, power reserve and function selector. Dimensions : Length 62 mm x 52.00 mm (widest point) x 15.60 mm (thickest area) MAIN FEATURES (MANY OF WHICH ARE MAJOR TECHNICAL INNOVATIONS) CARBON NANOFIBER MOVEMENT PLATE This is an isotropic composite material created from carbon nanofibers molded under a high pressure of 7,500 N/cm2 and a temperature of 2,000˚C, resulting in a material with high mechanical, physical and chemical stability in all directions. The ribbed perimeter of the movement plate assures the highest rigidity between the plate and bridges. Carbon nanofiber composite structures such as this are amorphous, chemically neutral and dimensionally constant within a very wide range of operating temperatures, including those outside of normal ranges. This stability assures the highest integrity of the movement’s going train under all conditions. POWER RESERVE: circa 10 days, supplied by two directly engaged winding barrels, visible via a numeric sale located between 9 and 10 o’clock. VARIABLE INERTIA, FREE SPRUNG BALANCE The free-sprung balance with overcoil spring (originally designed for pocket watches in particular), gives better reliability in the event of shocks, movement assembly and disassembly, and also guarantees excellent chronometric results over an extended period of time. 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. FUNCTION SELECTOR In a manner similar to a car’s gearbox, pulling the crown located at 12 o’clock allows one to select the winding, neutral and hand setting functions accordingly. A hand at 4 o’clock displays the selected function: W (Winding) – N (Neutral) – H (Hands). OTHER FEATURES - Movement dimensions: 42.20 x 42.20 mm - Thickness: 8.40 mm - Tourbillon diameter: 12.30 mm - Balance wheel diameter: 10 mm - Number of jewels: 28 - Balance: GLUCYDUR, 2 arms, 20 setting screws, inertia moment 10 mg cm2, angle of lift 53º - Frequency: 21,600 vph (3 Hz) - Balance spring: ELINVAR by NIVAROX - 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: |
