The Richard Mille RM 62-01 Tourbillon Vibrating Alarm ACJ is a highly complex 50mm timepiece developed in collaboration with Airbus Corporate Jets. Limited to just 30 pieces, the watch features a tonneau-shaped case constructed from a combination of grade 5 titanium and Carbon TPT. This material pairing is engineered to optimize the weight-to-stiffness ratio, ensuring that the vibrations from its signature alarm are directed toward the wearer’s wrist while protecting the internal movement. The design includes a double bezel and a sapphire crystal shaped to evoke an airplane window, housing a total of 816 individual components.
This model is powered by the manual-winding calibre RM62-01, which offers a 70-hour power reserve and a free-sprung tourbillon oscillating at 3Hz. Its primary innovation is a silent vibrating alarm, which uses a solid white gold oscillating weight spinning at 5,400 rpm to provide a discreet tactile alert rather than an audible chime. The skeletonized dial provides an extensive array of indicators, including an oversize date, a green UTC hand for a second time zone, an AM/PM indicator, and dedicated power reserve displays for both the main movement and the alarm function. A function selector integrated into the crown allows the wearer to toggle between five modes: neutral, winding, time setting, UTC setting, and alarm setting.
General reviews emphasize the RM 62-01 as one of the most technically ambitious timepieces Richard Mille has ever produced, representing five years of research and development. Critics and enthusiasts often highlight the contrast between its complex, multi-layered aesthetic and its practical utility as a travel instrument designed for the hushed environment of private aviation. While some note that its bold, industrial design is a departure from traditional horological subtlety, the watch is widely praised for its mechanical ingenuity, specifically the patented shock-resistant vibration system that manages to incorporate intense mechanical activity without compromising timekeeping precision.