Vacheron Constantin’s Overseas turns 30 this year, and the Maison is marking the milestone with a watch that trades volume for finesse. The new Overseas Perpetual Calendar Ultra-Thin Azure Dial, a limited edition of 200 pieces, pairs one of watchmaking’s most demanding complications with one of its slimmest profiles — and does it, for the first time, in a white gold case with a soft new azure dial.
The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Azure Dial is a 200-piece limited edition celebrating the Overseas collection's 30th anniversary, pairing a new lighter azure lacquered dial with an 18K white gold case just 8.1mm thick, powered by the ultra-thin self-winding Calibre 1120 QP/1.

The Overseas arrived in 1996 as the heir to the 222, and the sport-chic style Vacheron Constantin pioneered in the 1970s, defined then and now by a notched bezel screwed to a flat case and an integrated bracelet that echoes the Maltese cross. Three generations later, the collection now spans everything from simple time-only models to the house’s most serious complications. This anniversary piece lands firmly in the second camp.
The story starts with the color. Vacheron Constantin introduced its now-signature deep Overseas blue in 2016, and this new azure is its lighter, less saturated cousin, shifting tone as the light moves across the lacquered surface. It reads less as a sports-watch blue and more as open sky and water, which is the point for a collection built around the spirit of travel. The moon phase disc is finished in a matching blue, while the applied white gold markers hold just enough contrast to keep everything legible.

What sits beneath that dial is the real feat. The self-winding Caliber 1120 QP/1 packs a full perpetual calendar — date, day, month, leap year and moon phase — into a movement just 4.05mm thick, which keeps the white gold case to a remarkable 8.1mm. A perpetual calendar this slim is among the hardest things to execute in fine watchmaking, and it tracks the length of every month and every leap year automatically, needing no correction until the year 2100.
Turn it over, and the sapphire caseback shows the finishing that earns the watch its Geneva Seal: Côtes de Genève and beveled bridges, perlage across the mainplate, and a 22K gold oscillating weight engraved with a compass rose, the collection’s quiet nod to exploration. All 276 components meet Haute Horlogerie standards, including the ones no one sees once the movement is closed. The case measures 41.5mm across and is water-resistant to 50 meters.

True to the Overseas’ identity, the watch ships ready to change character. The integrated white gold bracelet, with its half-Maltese-cross links and a micro-adjustable folding clasp, swaps without tools for either of two textured rubber straps — one white, one denim blue — each on a white gold pin buckle. It’s the quick-change system that has defined the modern Overseas since 2016, here rendered entirely in precious metal.
Founded in 1755 and the oldest watch manufacturer in continuous production, Vacheron Constantin has spent 270 years arguing that restraint is its own kind of statement. At 30, the Overseas makes the same case — trading noise for precision and letting a new shade of blue carry a watch that says everything it needs to at 8.1mm.
