Vacheron Constantin Introduces the Overseas Grand Complication Openface: A Daring Synthesis of Sport and Haute Horlogerie

With the launch of the Overseas Grand Complication Openface, Vacheron Constantin shatters expectations—once again. For the first time, the Overseas collection incorporates a minute repeater, and it does so with characteristic audacity: adding a perpetual calendar, a tourbillon, and a power reserve indicator into the mix. All of this is housed within a titanium case that's water-resistant, elegantly proportioned, and unmistakably Overseas.

At the core lies the Calibre 2755 QP, a mechanical marvel composed of 602 components and measuring just 7.9 mm thick. Derived from research for the legendary Tour de l’Île and enhanced over years of technical refinement, the movement's complexity is matched only by its sophistication. The repeater's striking mechanism is governed by a proprietary centripetal regulator—completely silent yet finely tuned for sonic precision.

While this is the first time such a grand complication enters the sporty Overseas realm, the open-face concept is anything but new for Vacheron Constantin. "The Maison made a name for itself in the 1920s, at the height of the Art Deco period, with some extremely elegant open-face pocket watches in platinum and rock crystal," a brand representative notes. "More recently, the Twin Beat Perpetual Calendar Openface in 2019, the Traditionnelle Complete Calendar Openface in 2021, and the Traditionnelle Tourbillon Retrograde Date Openface in 2023 have continued this tradition."

But that legacy doesn't make the execution any easier. "When the dial is openworked, the caliber is visible from the front, so we need to apply galvanic or PVD surface treatments to the movement components to give them colors that fully respect the avant-garde spirit," explains the Maison. The sapphire crystal dial, both aesthetic and functional, demands delicate machining, metallization, and precision finishing.

​Does a timepiece this complex belong in a collection rooted in exploration? Absolutely. "The world of horological complications is no longer confined to fragile, museum-quality timepieces—far from it," says the brand. "The same is true of this new Overseas Grand Complication Openface. It is equipped with a complex calibre but in a form that honours the collection's adventurous character."

That balance between rugged and refined is precisely what makes this watch feel so relevant today. A high complication placed within a sporty, travel-ready case speaks directly to modern aesthetics and evolving dress codes. It's a watch for a world in motion: technically masterful, effortlessly contemporary, and ready for anything.