Description

RM 74-01 Automatic Winding Tourbillon

The tourbillon in the RM 74-01, which masterfully mixes style and watchmaking science, is highlighted by the watch’s exceptionally slender lines. Skeletonized automatic-winding tourbillon movement having hours, minutes, and a rotor with changing shape. Grade 5 titanium, a biocompatible, incredibly corrosion-resistant, and astoundingly rigid metal, is used for the baseplate and bridges of the RM 74-01 Automatic Winding Tourbillon. This allows the gear train to function smoothly.

The alloy is composed of 90% grade 5 titanium, 6% aluminum, and 4% vanadium. This combination further improves the material’s mechanical properties, which is why it is widely utilized in the aerospace, aeronautics, and automotive industries.

Specifications

• Brand: Richard Mille (RM)
• Model: RM 74-01
• Condition: New & Unworn
• Mechanism: Automatic Winding
• Caliber: CRMT5
• Power reserve: around 50 hours (± 10%)

Movement Characteristics

• Movement dimensions: 30.70 x 23.70 mm
• Thickness: 6.20 mm
• Number of jewels: 23
• Balance: CuBe, 4 arms, 4 setting weights, moment of inertia of 7.5 mg.cm2, 50º angle of lift
• Frequency: 28,800 vph (4 Hz)
• Balance spring: AK 3
• Shock protection: INCABLOC 908.22.211.100 (transparent)