The Prestex Big Date Open Heart: A Study in Classical Watchmaking
In an era where watch design often leans toward excess, the Prestex Big Date Open Heart Automatic offers something far more compelling — restraint, balance, and mechanical honesty.
This is a watch built on traditional principles, yet quietly modern in execution. Every element has been considered, not to stand out individually, but to work in harmony. The result is a piece that feels immediately familiar, yet distinctly refined.
At first glance, the dial presents a clean, symmetrical layout anchored by a large date display at 12 o’clock — a feature rarely executed with such elegance. The oversized aperture improves legibility without disrupting the classical proportions of the watch, maintaining a sense of calm and order across the dial.
But it’s at 6 o’clock where the character of the watch truly reveals itself.
Mechanical Detail, Thoughtfully Exposed
The open-heart aperture offers a glimpse into the movement beneath — not as a statement of extravagance, but as a subtle nod to traditional watchmaking.
There’s something inherently captivating about seeing the escapement in motion. It transforms the watch from a static object into something alive — a constant reminder of the mechanical precision at work within.
This is not skeletonisation for the sake of it. The aperture is carefully positioned to preserve dial balance, allowing the watch to remain elegant while adding depth and intrigue.
Combined with the guilloché-style textured dial, the effect is one of quiet complexity — a piece that rewards closer inspection.
A Case That Reflects Its Heritage
The case design continues this philosophy.
Crafted in polished stainless steel, the 39.5mm case sits comfortably between classic dress proportions and modern wearability. At 14.6mm in depth, it carries presence without feeling excessive, supported by a curved profile that sits naturally on the wrist.
What sets it apart, however, is the coin edge detailing on both the top and bottom of the case — a subtle but distinctive feature that draws directly from vintage watchmaking.
It’s the kind of detail that isn’t immediately obvious, but once noticed, defines the character of the piece.
Paired with a hand-finished leather strap in either black or rich brown, the watch transitions effortlessly between formal and everyday settings — exactly as a true classic should.
Designed for Everyday Mechanical Appreciation
At its core, this is a watch made to be worn.
Powered by an automatic self-winding movement, it offers over 48 hours of power reserve, ensuring reliability alongside its aesthetic appeal. The inclusion of a hardened mineral crystal front and back provides durability while allowing a secondary view of the movement through the caseback.
With 3 ATM water resistance, it is designed for daily life — not as a tool watch, but as a refined companion.
This balance between usability and craftsmanship is what defines the Big Date Open Heart. It doesn’t demand attention — it earns it over time.
A Considered First Release
The first release of the Prestex Big Date Open Heart Automatic is intentionally limited.
Only 50 pieces will be available in this initial drop, with delivery scheduled for June 2026. This is not about artificial scarcity, but about maintaining a level of care and attention in production.
For those who appreciate mechanical watches, this first edition represents something more than ownership — it’s participation in the beginning of a new chapter for the collection.
Key Specifications
- Automatic self-winding movement
- Big date display at 12 o’clock
- Open-heart aperture showcasing the escapement
- 39.5mm stainless steel case
- 14.6mm case depth
- Over 48-hour power reserve
- Guilloché-style textured dial
- Blued hands for enhanced contrast
- Coin edge detailing (top and bottom case)
- Genuine leather strap (black or brown)
- Hardened mineral crystal (front and back)
- 3 ATM water resistance (splashproof)
A Modern Classic, Without Compromise
The Big Date Open Heart is not designed to follow trends. It sits firmly outside of them.
It’s for those who appreciate proportion, detail, and the quiet confidence of traditional watchmaking done well. A watch that reveals more over time — not less.
With just 50 pieces available in the first release, this is a considered opportunity to secure something genuinely limited, thoughtfully designed, and built to endure.
Pre-Order Now
The first release is now open for pre-order, with delivery beginning June 2026.
