Step Into Luxury: Rado DiaStar Original Open-Heart at Lexor Miami
Luxury watches are more than timekeepers—they are stories wrapped in steel, art you can wear, and heirlooms in the making. Among these treasures, the Rado DiaStar Original Open-Heart (Ref. R12065303) stands out as a piece that blends groundbreaking durability, refined elegance, and mechanical mastery.
At Lexor Miami, this watch is more than a product on a display stand—it’s part of a curated experience. From full-length mirrors that let you admire your choice from every angle, to personalized guidance from our knowledgeable team, and the peace of mind that comes from shopping with an authorized Rado dealer, the journey is as exceptional as the timepiece itself.
The Story of DiaStar – A Legacy of Innovation
When Rado launched the DiaStar in 1962, it wasn’t just releasing another watch—it was making history. This was the world’s first scratch-resistant watch, created using tungsten-carbide “hardmetal,” a material more commonly seen in industrial tools than luxury fashion. The result? A case that could resist the wear and tear of daily life while maintaining its lustrous finish for decades.
The DiaStar quickly became known as “The Original” among watch collectors, an icon that dared to look different. Over the decades, Rado refined the design, adding modern mechanics and innovative materials without losing the distinctive shield-like case and unmistakable presence.
Today, the R12065303 continues that legacy, adding an open-heart dial to give wearers a window into the artistry of Swiss watchmaking. It’s a nod to tradition and a celebration of contemporary style.
Design at a Glance – Where Beauty Meets Function
Every detail of the Rado DiaStar Original Open-Heart reflects the brand’s commitment to creating watches that are both functional and artistic.
Case and Crystal
The 35 mm stainless steel case, coated with a warm brown PVD finish, makes this watch uniquely versatile. It’s bold enough to stand out, yet understated enough to complement both casual and formal attire. The watch is protected by a vertically faceted sapphire crystal, a signature DiaStar element, which refracts light beautifully and offers exceptional scratch resistance.
Dial – The Open-Heart Magic
The brown sunray dial features six cubic zirconia hour markers, adding a subtle sparkle without overpowering the design. The real star is the open-heart window, which reveals the beating balance wheel inside. This is not just decoration—it’s a living, breathing display of horology, a reminder of the craftsmanship that goes into every Rado.
Movement – Swiss Precision at Its Finest
Inside beats the Rado Caliber R764, an automatic movement based on the reliable ETA C07.111. This Swiss-made marvel offers an impressive 80-hour power reserve, meaning you can set it down for three full days and it will still be running when you return. It also features a Nivachron™ hairspring, which offers improved resistance to magnetism and temperature variations, ensuring accuracy in everyday life.
Other Key Specifications
-
Case thickness: 11.9 mm – substantial yet wearable.
-
Water resistance: 30 meters – perfect for daily wear, though not for diving.
-
Transparent case back: Allows you to admire the movement from the reverse side.
-
Bracelet: Stainless steel with PVD coating, matching the warmth of the case for a cohesive look.
Why the Open-Heart Design Captivates
While skeleton watches showcase the entire movement, open-heart designs focus on one key element—the balance wheel. This is the “heart” of the watch, pulsing back and forth to regulate timekeeping.
In the R12065303, the open-heart display is positioned thoughtfully, balancing the dial layout while allowing light to play across the moving components. It’s an intimate detail—you could almost say it feels like the watch is alive. For enthusiasts, it’s a conversation starter. For new collectors, it’s a gateway into the world of mechanical watchmaking.
The Lexor Miami Experience – Where Luxury Comes to Life
Owning a Rado is special. But discovering it in the right setting transforms the entire experience. At Lexor Miami, we make sure your watch journey is as memorable as the timepiece you choose.
Mirrors That Do More Than Reflect
In our boutique, full-length mirrors are placed strategically so you can see the watch on your wrist from every possible angle. You can compare how it looks against different outfits or in different lighting. This helps you imagine how it will integrate into your daily style—not just how it looks in the moment.
Personalized Attention
Every customer receives one-on-one service from a knowledgeable associate who understands both the technical details and the stylistic nuances of each watch. Whether you need help adjusting the bracelet for the perfect fit or want to learn about the history of the DiaStar line, we’re here to guide you every step of the way.
Authorized Dealer Confidence
As an authorized Rado dealer, Lexor Miami guarantees that every watch is 100% authentic, comes with the official manufacturer’s warranty, and is eligible for authorized service and repairs. This is something online marketplaces can’t always promise—and a key reason why purchasing from an authorized retailer matters.
Why This Watch Belongs in Your Collection
The Rado DiaStar Original Open-Heart R12065303 is more than just a watch—it’s a piece of horological history that continues to evolve. Here’s why it’s worth your attention:
-
Heritage & Credibility – You’re wearing a design that pioneered scratch-resistant cases over 60 years ago.
-
Mechanical Beauty – The open-heart dial connects you directly to the craftsmanship inside.
-
Durability – With its PVD coating, sapphire crystal, and robust movement, this watch is built to last.
-
Long Power Reserve – Fewer windings, more convenience.
-
Versatility – The warm tones and compact 35 mm size make it wearable for men and women, day or night.
Care & Maintenance Tips for the DiaStar Original Open-Heart
Luxury watches deserve proper care to keep them running beautifully for decades.
-
Avoid Extreme Impacts – While the DiaStar case is scratch-resistant, the movement inside is still a delicate mechanism.
-
Service Regularly – Have it checked by an authorized Rado service center every 3–5 years.
-
Clean Gently – Use a soft microfiber cloth to remove smudges and dirt.
-
Store Safely – Keep it in a watch box when not in use to avoid unnecessary exposure to dust and moisture.
-
Water Resistance – Avoid swimming or showering with the watch; it’s water-resistant but not designed for submersion.
A Visit Worth Making
In a world where so much shopping happens online, there’s something refreshing about stepping into a boutique and feeling the weight of a watch on your wrist before you buy it.
At Lexor Miami, you’ll find a warm, welcoming space where mirrors help you see your future watch in action, our team offers customized attention, and every piece is backed by the security of authorized dealer status.
Conclusion – Your Next Chapter in Time
The Rado DiaStar Original Open-Heart R12065303 is a statement of style, a celebration of innovation, and a tribute to the enduring power of Swiss watchmaking. Pair that with the luxury retail experience at Lexor Miami, and you’re not just buying a watch—you’re starting a new chapter in your personal timekeeping story.
Visit us today, try it on, see it in the mirrors, feel its weight, and take home a piece of horological history.
Frequently Asked Questions
Q: Is the Rado DiaStar Original Open-Heart suitable for daily wear?
Yes. Its scratch-resistant sapphire crystal and durable PVD coating make it resilient enough for everyday use while maintaining a refined look.
Q: Does Lexor Miami offer bracelet resizing?
Absolutely. Our staff will adjust your bracelet for the perfect fit before you leave the store.
Q: How often should I service my Rado watch?
We recommend servicing every 3–5 years at an authorized Rado service center to maintain accuracy and water resistance.
Q: Why should I buy from an authorized dealer like Lexor Miami?
Authorized dealers guarantee authenticity, offer the manufacturer’s warranty, and provide access to official after-sales services.
Q: Can I see how the watch looks with different outfits before buying?
Yes! Our mirrors and personalized service let you visualize the watch in various styles, so you can be confident in your choice.