Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin (2026): 30 Years, 8.1mm

The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin marks the collection's 30th anniversary the way only Vacheron can: not with a bigger, louder watch, but with a slimmer one. At just 8.1mm thick , this white-gold, azure-dialed perpetual calendar (reference 4300V/220G-H119) is a limited edition of 200 pieces that reasserts the Overseas as a genuine high-complication sports watch rather than a three-hand luxury staple.

It is a pointed statement in a market that increasingly prizes thinness as the ultimate flex. Packing a full perpetual calendar — day, date, month, leap-year cycle and moonphase — into a case this slender is a far harder engineering problem than making a watch merely expensive, and it is exactly the kind of quiet technical one-upmanship the "Holy Trinity" brands reserve for their anniversaries.

Thirty Years of the Overseas

The Overseas debuted in 1996 as the successor to the 222 — Vacheron's 1977 answer to the Royal Oak and Nautilus in the golden age of the luxury sports watch — and it inherited the integrated-bracelet DNA of that era while adding the brand's signature six-notch bezel, a stylised nod to the Maltese cross in the Vacheron logo. Over three decades the Overseas has grown from a simple time-and-date sports watch into a full collection spanning chronographs, dual-time travellers and grand complications. This ultra-thin perpetual calendar is the anniversary keystone, and it continues the story told on our Overseas model history page.

The Calibre 1120 QP/1: A 4.05mm Perpetual Calendar

The magic lives in the movement. The automatic Calibre 1120 QP/1 is a mere 4.05mm thick yet runs a complete perpetual calendar and moonphase. It descends from one of the most storied ultra-thin automatic architectures in watchmaking — the base 1120, itself derived from the legendary Jaeger-LeCoultre 920 that also underpinned the original Royal Oak and Nautilus movements — and keeps its height down with a peripheral-style 22k gold rotor engraved with a compass rose, a subtle nod to the Overseas' travel theme.

Specification-wise the caliber carries 276 components and 36 jewels, beats at a deliberately unhurried 19,800 vph (2.75 Hz) in the interest of slimness, and offers a 40-hour power reserve. The finishing is everything you would expect at this level: Côtes de Genève, mirror-polished chamfers, perlage and solarised wheels, all visible through the sapphire caseback.

Case, Azure Dial and the Strap System

The 41.5mm case is 18k white gold with polished and satin-brushed surfaces, water resistant to 50 metres, and — unusually for the Overseas — uses a push-pull crown rather than a screw-down one, a concession that helps keep the profile slim. The azure blue lacquered dial has a sunray main surface with recessed, snailed calendar sub-dials, white-gold hands and markers filled with blue Super-LumiNova, and a light-blue peripheral minute scale. As is now standard on the Overseas, it ships with the interchangeable quick-change system : an 18k white-gold half-Maltese-cross bracelet plus two rubber straps in white and denim blue, no tools required.

Overseas Perpetual Calendar Ultra-Thin (2026): Full Specifications

Price, Availability and Positioning

At US$132,000 for one of 200 pieces , the Overseas Perpetual Calendar Ultra-Thin sits well above the standard Overseas Perpetual Calendar (around $115,000) and reflects both the white-gold anniversary specification and the collectibility of a numbered run. It is aimed squarely at the collector who already owns simpler Overseas models and wants the halo grand complication — a watch that wears like a sports watch but competes with the thinnest dress perpetual calendars on the market.