Vacheron Constantin Overseas Chronograph Chrono Defi Mer SS Black Dial LIMITED

Introduced in 2007 as a Japan‑exclusive limited edition of just 50 pieces, the Vacheron Constantin Overseas Chronograph “Chrono Defi Mer” (ref. 49150/B01A‑9269) represents a rare and compelling chapter in the storied Overseas lineage. Built on the robust 42 mm stainless steel case of the Overseas Chronograph, this commemorative edition distinguishes itself with a micro‑grain finished black dial, a tachymeter scale around the periphery, and a solid caseback engraved “Limited Edition” — a subtle yet powerful nod to its scarcity. Powered by the in‑house automatic Caliber 1137, offering approximately 40 hours of power reserve and a big date function, the movement underscores Vacheron’s technical pedigree. With 150 m of water resistance, this model balances sporty utility with haute horology finesse. Collectors prize it not only for its limited run and Japan‑only release, but also for its refined dial treatment and the integration of a high‑grade chronograph caliber in a versatile, elegant sport watch platform. It stands as a testament to Vacheron Constantin’s ability to blend exclusivity, technical sophistication, and design nuance in a single, highly collectible package. Like New with Vacheron Constantin box and papers dated 2007.