Today, September 17, 2025 marks 270 years of uninterrupted history of the oldest watch manufacture in the world: Vacheron Constantin. As the world's oldest continuously operating watch manufacture, the Geneva-based maison has spent nearly three centuries perfecting the art of timekeeping, creating some of the most coveted and technically sophisticated timepieces ever conceived. For serious collectors, understanding Vacheron Constantin's remarkable journey through history—and the extraordinary rare references that punctuate its timeline—represents nothing less than a masterclass in horological excellence