Rado True Round Open Heart: when light reveals another personality

From the very beginning, Rado has cultivated a singular approach to watchmaking, one in which material innovation holds a place just as important as mechanics itself. With the new True Round Open Heart Limited Edition, the Swiss manufacture offers a creation that does more than simply tell the time: it interacts with its surroundings.

At first glance, this limited edition captivates with the softness of its pink hues and the elegance of its high-tech ceramic silhouette. But when ultraviolet rays come into play, the watch reveals an unexpected side. Its dial gradually transforms, shifting from a delicate powder pink to a vivid magenta. A spectacular metamorphosis that literally brings the timepiece to life.

A watch that changes with the light

The distinctive feature of this new True Round Open Heart lies in its photochromic dial, a technology rarely employed in the world of watchmaking.

Under ordinary light, the dial displays an elegant pale pink with a sunray finish. Exposed to UV, it gradually evolves toward an intense magenta tone, creating a dynamic visual experience that follows shifts in brightness throughout the day.

This transformation gives the watch an almost organic personality, as though it were responding naturally to its environment.

The effect is all the more accomplished as the monobloc case and the high-tech ceramic bracelet take on exactly the soft hue of the dial when at rest, creating a particularly harmonious whole.

A symbolic dial, between infinity and good fortune

The Open Heart collection has always maintained a special bond with visible mechanics. This new edition continues that tradition by showcasing the movement through a particularly refined opening.

Here, the famous openworked motif takes the shape of the number 8, often associated with luck, prosperity and balance across many cultures. This choice is no coincidence, since the watch is produced in just 888 examples worldwide.

Depending on the viewing angle, this opening also evokes a symbol of infinity, creating an intriguing visual reflection on time that passes and time that seems suspended.

The applied rose gold-coloured indexes, the matching hands and the subtle details of the dial further reinforce this refined, contemporary atmosphere.

Rado’s mastery of ceramics

If there is one field in which Rado has excelled for several decades, it is undoubtedly that of advanced materials.

The True Round Open Heart once again highlights the brand’s famous high-tech ceramic. Introduced by Rado as early as 1986, this material has become one of the Swiss manufacture’s strongest signatures.

Exceptionally scratch-resistant, incredibly light and soft to the touch, it provides a unique sensation on the wrist. Its ability to adapt quickly to body temperature also contributes to its exceptional comfort, to the point of giving the impression that the watch naturally becomes part of the person wearing it.

Producing such a material requires a complex process involving ultra-pure zirconium dioxide powders, moulded under very high pressure, then sintered at nearly 1,450 °C before being polished with diamond tools. An industrial expertise that remains, to this day, one of Rado’s great strengths.

A visible, high-performing mechanical heart

Behind its alluring aesthetic also lies a true connoisseur’s watch.

The True Round Open Heart is driven by the automatic calibre R734, developed specifically for Rado. This modern movement features an antimagnetic Nivachron™ hairspring as well as a generous 80-hour power reserve.

Adjusted in five positions to enhance its accuracy, it delivers performance comfortably in line with today’s expectations while remaining visible through the transparent sapphire crystal case back.

The opening in the dial also allows part of its architecture to be admired and strengthens the emotional bond between the owner and the mechanics that bring the watch to life.

Contemporary elegance

With its 40 mm diameter, its restrained 10.4 mm thickness and its clean lines, this True Round Open Heart retains all the versatility that defines the collection.

The pink hue, rarely used with such subtlety in contemporary watchmaking, gives it a strong identity without ever tipping into excess. Paired with the polished ceramic and the rose gold-coloured details, it produces an aesthetic that is modern, luminous and resolutely different.

Specification	Value
Movement	Rado R734 (automatic)
Case	40 mm, high-tech ceramic
Thickness	10.4 mm
Power reserve	80 h
Dial	photochromic

Passion Horlogère’s verdict

With this True Round Open Heart Limited Edition, Rado once again demonstrates its ability to explore territories where few brands dare to venture. The photochromic dial brings a fascinating interactive dimension, while the mastery of high-tech ceramic confirms the house’s status as a true “Master of Materials”.

Beyond its originality, this new release wins over with the coherence of its execution. Between the symbolism of the number 8, the colours that transform on contact with light and the automatic movement visible through the dial, every element contributes to a different watchmaking experience.

A watch that does not merely seek to be looked at, but to be lived with through the hours and the shifting light. A bold stance, perfectly in keeping with the spirit of Rado.

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