The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton (Ref. 4300V/120G-B946) is a pinnacle of the Overseas collection, combining a high-complication movement with a slim, 18k white gold sports-luxury profile.

• Case: 41.5mm diameter and just 8.1mm thick. It is crafted from 18k white gold and features a sapphire crystal front and back with a 50m water-resistance rating.

• Movement: The in-house Caliber 1120 QPSQ/1 is a self-winding, skeletonized masterpiece. It is ultra-thin at 4.05mm, consists of 276 components, and offers a 40-hour power reserve.

• Calendar Functions: Displays hours, minutes, day, date, month, and a 48-month leap year cycle. The perpetual calendar will remain accurate until the year 2100 without manual adjustment.

• Aesthetics: Features blue-ringed sub-dials for better legibility against the open-worked movement. The moon phase at 6 o'clock uses a star-studded sky with two 18k gold moons.