Description

The present watch is the Vacheron Constantin Overseas Ultra-Thin Perpetual Calendar Skeleton, reference 4300V/120R-B547, a masterpiece of “sport-chic” horology that represents the pinnacle of the modern Overseas collection. Introduced in 2020, this reference takes one of the most sophisticated complications in watchmaking—the perpetual calendar—and presents it within an aggressively modern, openworked architecture. By marrying the legendary ultra-thin craftsmanship of the Maison with the bold, industrial aesthetic of a skeletonized calibre, Vacheron Constantin has created a timepiece of exceptional depth and mechanical transparency.

The 41.5 mm case is crafted from radiant 18K 5N pink gold, a material that provides a warm, luxurious contrast to the technical grey of the movement within. Despite the complexity of the perpetual calendar mechanism, the watch maintained an extraordinarily slender profile of just 8.1 mm, allowing it to sit with remarkable elegance against the wrist. The signature six-sided bezel, inspired by the Maltese Cross, serves as a gateway to the intricate web of gears, levers, and bridges visible through the sapphire dial.

Powering this reference is the Calibre 1120 QP SQ, a skeletonized version of Vacheron Constantin’s legendary ultra-thin perpetual calendar movement. The “SQ” (Squelette) designation signifies that every bridge and plate has been meticulously hollowed out and finished by hand, with no two surfaces left untouched by the artisan’s touch. The movement remains synchronized until the year 2100, displaying the day of the week, the date, the month, and a calculation for leap years, all complemented by a poetic moonphase at 6 o’clock.

Legibility is expertly managed through the use of applied pink gold hour markers and hands, both filled with luminescent material for visibility in low light. The various sub-dials of the calendar are clearly defined, ensuring that the wealth of information provided by the complex calibre remains accessible at a glance.

True to the versatile spirit of the Overseas line, the 4300V/120R-B547 features a highly practical interchangeable strap system. It is delivered on a full pink gold bracelet featuring polished and satin-brushed Maltese Cross-inspired links, and is accompanied by both a blue alligator leather strap and a blue rubber strap. This ability to transition from a formal gold bracelet to a sporty rubber strap in seconds ensures the watch is prepared for any environment, from the boardroom to the coastline.

The Overseas Ultra-Thin Perpetual Calendar Skeleton in pink gold is an uncompromising expression of 21st-century Haute Horlogerie. It is a watch for the collector who demands the highest level of traditional finishing while celebrating the transparent, avant-garde beauty of modern mechanical engineering.

Vacheron Constantin – bio

The company was founded in 1755 by Jean-Marc Vacheron, an independent watchmaker in Geneva, Switzerland. In 1770, his company created the first complication, and nine years later he designed the first engine-turned dials. … Consequently, in 1819 François Constantin became an associate of Vacheron.
It is among the The Oldest Surviving Watch-Making Brands with an uninterrupted history since 1755.