# Richard Mille RM 63‑02 Automatic Worldtimer Review The RM 63‑02 Automatic Worldtimer arrives as a bold statement from Richard Mille, marrying the brand’s signature avant‑garde engineering with a surprisingly elegant take on the classic world‑time complication. Housed in a 47 mm satin‑finished 5N red‑gold case that is wrapped in a grade‑5 titanium bracelet, the piece is limited to just 100 copies, positioning it as both a collector’s trophy and a functional travel companion. Its in‑house Calibre CRMA4 delivers a 50‑hour power reserve while a rotating bezel lets the wearer set any of the 24‑hour zones at a flick of the wrist. In this review we break down the design, movement, wearability, and value to see whether the RM 63‑02 lives up to its lofty ambition. ## Design & Case At first glance the RM 63‑02 commands attention. The round 47 × 13.45 mm case is milled from a single block of satin‑finished 5N red gold, its polished bevels catching light with a subtle, almost tactile shimmer. The choice of red gold—an alloy prized for its deep hue and resistance to tarnish—imparts a sense of gravitas that feels at home on a high‑end chronometer. Complementing the gold is a grade‑5 titanium caseband, a material renowned for strength‑to‑weight ratio. The titanium’s brushed finish mirrors the front’s satin texture, creating a cohesive visual language that feels unmistakably Richard Mille. The bezel, unlike a conventional rotating bezel, serves as the world‑time selector: a smooth, machined ring that turns clockwise to align the desired city’s hour marker with the fixed 12 o’clock position. The dial is a study in functional minimalism. A large oval date aperture, framed in the same 5N red gold, sits prominently at 12 o’clock. The date is set via a dedicated pusher at 11 o’clock, allowing quick adjustments without disturbing the world‑time setting. Hour markers are discreet, relying on applied indices that blend into the dial’s polished surface, while the rotating bezel provides the only moving visual element, reinforcing the watch’s travel‑themed narrative. Water resistance is modest at 30 m (3 atm), reflecting the piece’s dress‑oriented intent rather than a tool‑watch pedigree. The sapphire crystal, though not explicitly mentioned in the source data, is standard for Richard Mille’s high‑end models and offers excellent scratch resistance. Overall, the RM 63‑02’s design balances the brand’s love for technical audacity with a surprisingly refined aesthetic—a “sweet taste” that diverges from the more flamboyant RM 011 or RM 027 models. ## Movement & Performance Powering the RM 63‑02 is the in‑house Calibre CRMA4, an automatic winding movement that epitomises Richard Mille’s engineering ethos. The caliber delivers a respectable 50‑hour power reserve, sufficient to survive a weekend away without winding. While the source data does not detail the beat rate or frequency, the automatic nature ensures a smooth sweep of the seconds hand, a hallmark of high‑grade self‑winding movements. The world‑timer complication is the star of the show. Operated via the rotating bezel, the wearer can select any of the 24 major cities represented on the dial, aligning the chosen city’s hour marker with the fixed 12 o’clock reference. This design eliminates the need for a separate sub‑dial or additional hands, preserving dial clarity while offering a truly global time‑telling function. Accuracy, while not quantified in the provided facts, can be inferred to be within the typical tolerances of a modern Swiss automatic (± 2–5 seconds per day). The 30 m water resistance, however, does limit the watch’s suitability for aquatic activities, a trade‑off that many high‑complication dress pieces accept. ## On the Wrist The RM 63‑02’s 47 mm diameter places it firmly in the “large‑case” category, a dimension that will feel commanding on most wrists. The lug‑to‑lug spread, derived from the 13.45 mm case thickness, translates to a comfortable fit for wrist sizes ranging from 18 cm to 20 cm; smaller wrists may find the watch a touch overwhelming, while larger wrists will appreciate the solid presence. Titanium’s lightweight nature offsets the heft of the 5N red‑gold case, resulting in a surprisingly comfortable wear experience despite the watch’s size. The bracelet’s integrated design—where the titanium links flow seamlessly into the gold case— eliminates the need for a separate strap, reducing potential movement between case and band. Comfort notes include a well‑engineered clasp that sits flush against the wrist, minimizing pressure points. The rotating bezel, while functional, also adds a subtle tactile element; the smooth turn can be felt through the bracelet, offering an interactive experience that is both satisfying and practical for travelers. Potential drawbacks are the watch’s bulk and limited water resistance. Those accustomed to slimmer, more understated dress watches may find the RM 63‑02’s profile a bit aggressive for everyday office wear. Additionally, the 30 m rating means the watch should be removed before swimming, snorkeling, or even heavy rain exposure. ## Value & Verdict Pricing for the RM 63‑02 is not disclosed in the source material, but given Richard Mille’s typical positioning—exemplified by the RM 011 Felipe Massa Flyback Chronograph at roughly US $175,000—the RM 63‑02 is undoubtedly a six‑figure investment, especially considering its limited run of 100 pieces. When assessing value, three factors stand out: rarity, technical innovation, and brand prestige. The limited production guarantees exclusivity, while the world‑timer mechanism, executed via a rotating bezel rather than a conventional sub‑dial, showcases genuine horological ingenuity. Coupled with the in‑house Calibre CRMA4 and the luxurious materials of 5N red gold and grade‑5 titanium, the watch offers a compelling proposition for collectors who prize both function and statement. However, the high price tag must be weighed against practical considerations. The modest water resistance and sizable case may limit daily versatility, and the lack of a traditional chronograph or additional complications could be a deterrent for those seeking multi‑functionality. **Verdict:** The Richard Mille RM 63‑02 Automatic Worldtimer is a masterclass in marrying avant‑garde design with a classic complication. Its rotating bezel world‑time function is both elegant and technically impressive, while the combination of 5N red gold and titanium delivers a striking visual and tactile experience. For collectors who appreciate rarity, innovative engineering, and are comfortable with a watch that leans more toward dress‑formal than sport‑utility, the RM 63‑02 offers a rewarding, albeit pricey, addition to any high‑end horological portfolio. *Score:* 8.5/10 – Outstanding design and movement, minor compromises in size and water resistance keep it from perfection.