Description

RM 47 Manual Winding Tourbillon

The RM 47 Tourbillon is a stunningly realistic work of art with an exceptionally small, samurai-suit-friendly calibre. Due to the aggression of its volumes, this decoration has such presence that it almost seems like sculpture rather than engraving. The RM 47 Manual Winding Tourbillon honors the foundations of Japanese craft history by giving an allegory of Bushido. The Asano clan’s crest is shown on the samurai armor at the center of the RM 47 Tourbillon for good reason. Tourbillon movement wound manually with hours and minutes.

Specifications

• Brand: Richard Mille (RM)
• Model: RM 47
• Condition: New & Unworn
• Mechanism: Manual winding
• Calibre: RM47
• Power reserve: Around 72 hours (± 10%).

Movement Characteristics

• Movement dimensions: 32.80 x 30.90 mm
• Thickness: 6.80 mm
• Tourbillon diameter: 10.90 mm
• Balance wheel diameter: 9.12 mm
• Jewels: 19
• Balance: Glucydur®, 2 arms, 4 setting screws, moment of inertia 11.50 mg•cm2, angle of lift 53°
• Frequency: 21,600 vph (3 Hz)
• Balance spring: elinvar by Nivarox®
• Shock protection: KIF ELASTOR KE 160 B28
• Barrel shaft: in nickel-free Chronifer® (DIN x 46 Cr 13 + S) with the following characteristics: stainless — antimagnetic — suitable for tempering

Case: When designing and building the entire watch, the movement, case, and dial were all viewed as an integrated whole. The tripartite case’s water resistance is provided by two Nitrile O-ring seals. The casing is put together with twenty grade 5 titanium spline screws and 316L stainless steel abrasion-resistant washers.