The Richard Mille RM UP-01 Ferrari measures 1.75 mm thick overall, with a 1.18 mm movement. When it debuted in 2022, Richard Mille presented it as its thinnest watch and a record-setting mechanical design. The official sources cited here do not establish that it remains the thinnest mechanical watch today, so its record is best described as a launch-era claim rather than a verified current title.
How thin is the RM UP-01 Ferrari?
Richard Mille lists the watch at 1.75 mm thick overall and the movement at 1.18 mm. Those are different measurements: the first describes the complete watch, while the second is the movement alone. The 1.75 mm figure appears on the brand’s official model page; the Ferrari partnership page also gives that overall thickness and identifies the model as Richard Mille’s thinnest watch in its 2022 launch-era presentation (collaboration page; official Ferrari partnership page).
That makes the RM UP-01 Ferrari an ultra-flat production watch, but the available official material does not independently compare it with every mechanical watch released since. It therefore supports the launch-era record claim, not a definitive statement that the RM UP-01 is still the world’s thinnest mechanical watch.
How does its ultra-flat movement work?
The challenge in making a mechanical watch this thin is not simply shrinking every component. The regulating mechanism must still operate reliably despite the tight space. Richard Mille says the RM UP-01’s patented ultra-flat escapement removes the conventional dart, also called the guard pin, and safety roller. These parts help bank the lever after a shock in a conventional escapement; the RM UP-01 instead relocates the banking function to the anchor fork. This is the manufacturer’s explanation of its design, not an independently tested comparison.
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Movement specifications
| Specification | Published detail |
|---|---|
| Movement dimensions | 41.45 × 28.85 mm |
| Thickness | 1.18 mm |
| Winding | Manual |
| Frequency | 4 Hz (28,800 vph) |
| Power reserve | Around 45 hours (±10%) |
| Jewels | 23 |
Richard Mille specifies a Grade 5 titanium baseplate and bridges, a three-arm titanium-alloy balance with six setting weights, and Kif shock protection. Its fast-rotating barrel completes one revolution in six hours rather than 7.5. The brand says the baseplate was validated for strength and that the movement withstands accelerations over 5,000 g; those are manufacturer claims, not independent test findings in the cited sources (official model page; collaboration page).
What are the RM UP-01 Ferrari’s other specifications?
Richard Mille and Ferrari describe the watch as weighing 30 grams including its strap, water-resistant to 10 metres, and limited to 150 pieces. The collaboration page dates to 2022. Its stated water resistance is a specification, not an invitation to treat the watch as suitable for swimming or diving (Richard Mille–Ferrari collaboration page).
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How was the RM UP-01 Ferrari developed?
Richard Mille says the brand and Ferrari began a long-term partnership in 2021. The RM UP-01 Ferrari was one result of that collaboration. For this watch, Richard Mille reports more than 6,000 hours of development and laboratory testing. It also reports the movement’s ability to withstand accelerations over 5,000 g. Both figures are claims from the manufacturer and should be read in that context, rather than as independently verified test results (collaboration page; official Ferrari partnership page).
Richard Mille’s official video listing for the watch is dated 2022-07-06 (official video listing), consistent with the launch-era framing of the record claim.
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Is it the thinnest mechanical watch today?
The cited official pages establish the RM UP-01 Ferrari’s measurements and Richard Mille’s launch-era claim, but they do not provide an independent, up-to-date comparison against other mechanical watches. A present-day record assessment would need to compare complete-watch thickness with complete-watch thickness, distinguish mechanical watches from quartz models, and account for whether a contender is a production watch or a concept. Without that comparison, calling the RM UP-01 the current thinnest mechanical watch goes beyond what these sources establish.
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- The pack of protective film covers the following areas:case (back, side, crown guard), lug (front), glass, bezel, endlink clasp ，(front, side),bracelet（front,side）.
- 【 Scratch resistant 】 Use Finewatchcare's specially designed watch protector to protect the surface of your watch from scratches and cracks
- 【Higher precision gloss】This protector is made of high-quality materials to restore its original luster and achieve higher accuracy.
- Maintain a smooth and stylish appearance of the watch while adding an additional protective layer.
- Use Finewatchcare's durable and reliable watch surface protection to extend the lifespan of the watch.
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