Vacheron Constantin 4300V (Pre-owned - Excellent) — USD 142,500 on eBay

The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton, reference 4300V, represents a sophisticated integration of high horology within the brand's contemporary sports watch collection. It stands as a testament to Vacheron Constantin's mastery of both complex mechanisms and openworked aesthetics, positioning itself as a flagship model within the Overseas line. This reference features a 41.5mm white gold case with a height of 8.10mm, housing the self-winding Caliber 1120 QPSQ. This movement operates at 19,800 vibrations per hour and provides a power reserve of approximately 40 hours. The perpetual calendar complication is displayed through subdials, with the skeletonized architecture revealing the intricate mechanics. For collectors, the 4300V offers a blend of technical prowess and distinctive design. Its perpetual calendar function, combined with the ultra-thin profile and openworked movement, appeals to those seeking a highly complicated yet wearable timepiece. The inclusion of interchangeable white gold bracelet, alligator, and rubber straps enhances its versatility and collector appeal.