The Richard Mille RM 51-02 Tourbillon Diamond Twister is a 2015, 30-piece fine-jewellery watch with a hand-wound tourbillon movement. Watch Collecting Lifestyle reported its launch sticker price as US$975,000 in 2015; that is historical pricing, not a current resale quote. The available sources describe the watch but do not document a firsthand inspection or wearing experience, so “hands-on” here reflects the title’s wording, not a claim of testing.
What the RM 51-02 is
Richard Mille lists the RM 51-02 Tourbillon Diamond Twister as a historical model dating to 2015 and states that production was limited to 30 timepieces. The brand presents it as a fine-jewellery tourbillon. Its description does not say that the design is exclusively for women.
Movement and indications
The watch uses Richard Mille Calibre RM51-02, a manual-winding tourbillon movement displaying hours, minutes and power reserve. Richard Mille also describes a torque-limiting crown intended to help prevent accidental overwinding.
Case, materials and diamond design
The curved, three-part tonneau case is set with white diamonds, with black sapphires accenting details. Richard Mille says the case’s manufacturing specifications required a year of research and development, and describes the curved shape as designed for ergonomics and comfort.
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Inside, the black onyx baseplate contrasts with skeletonised bridges made from PVD-treated Grade 5 titanium. The manufacturer specifies hand-finished anglage and black polish. Its design explanation describes 14 diamond rays radiating from the tourbillon at 6 o’clock, inspired by spiral forms.
Launch price and what it does—and does not—tell you
Watch Collecting Lifestyle reported a US$975,000 sticker price in its SIHH 2015 launch coverage: Watch Collecting Lifestyle’s SIHH 2015 report. This supports the “$900,000+” framing as a launch-era figure only. It should not be read as the watch’s current value.
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The cited sources do not establish a current asking price, a realized auction result or present availability for a specific RM 51-02. A present-day valuation cannot be derived from the reported launch price alone.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to know before treating it as a hands-on review
Richard Mille’s historical-model page provides specifications and the manufacturer’s design description, while the 2015 launch report supplies the sticker price. Neither documents this writer’s inspection or wearing experience. Case dimensions and weight are not stated on the manufacturer page, so they are not included here.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
