The Richard Mille RM 75-01 Flying Tourbillon Sapphire is a highly exclusive luxury timepiece that integrates avant-garde materials with architectural design. This specific iteration features a 32.90mm x 46.75mm tripartite case crafted entirely from solid blocks of pink-tinted sapphire, a material second only to diamond in hardness. The creation of the sapphire case is a significant technical undertaking, requiring over 1,000 hours of machining and polishing to achieve its complex, curved geometry and transparent finish. This model is a limited edition of only 10 pieces, with the lilac-pink hue specifically designed to evoke the aesthetic of a South Sea sunset.
The watch is powered by the manual-winding RM 75-01 calibre, a movement developed specifically to be showcased within a sapphire housing. Its primary complications include a flying tourbillon positioned at 6 o’clock and a flying barrel at 12 o’clock, both of which are engineered without upper bridges to create the visual illusion of levitation. The movement features a skeletonized baseplate and bridges made of grade 5 titanium and 5N red gold, utilizing a triangular, lattice-like structure inspired by Gothic ribbed vaults. It operates at a frequency of 3 Hz and provides a power reserve of approximately 65 hours, enhanced by a fast-rotating barrel that improves torque transmission and overall performance.
General reviews of the RM 75-01 emphasize its status as a pinnacle of horological engineering and “kinetic sculpture.” Experts highlight the seamless integration between the movement and the case, noting that the architecture was designed from the ground up to maximize light diffusion and transparency. While the watch is praised for its extreme lightweight construction, durability, and mesmerizing 360-degree view of the mechanics, it is also noted for its extreme rarity and high market value, often exceeding 2 million dollars. Collectors and critics alike view it as a bold statement piece that successfully bridges the gap between high-end watchmaking and modern art.