Vacheron Constantin Overseas Perpetual Calendar Ultra-thin 41.5mm New

Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton reference 4300V/120R-B547 is a masterpiece of haute horlogerie that blends high-complication watchmaking with luxury sports styling. The watch features a 41.5mm case crafted from 18K 5N pink gold and achieves a remarkably slim profile on the wrist at just 8.1mm thick, showcasing the manufacture's technical ability to compress complex mechanics into an ultra-thin frame. Its standout characteristic is the fully openworked skeleton dial underneath a sapphire crystal, which exposes the highly intricate, NAC-treated gray bridges and wheels of the automatic Caliber 1120 QP SQ. The symmetrical layout clearly displays the perpetual calendar complications—including the day, date, month, and leap year cycles—and features a star-studded blue moon phase indicator at the 6 o'clock position.