Masterlink Perpetual Calendar | Sapphire Dial , Mens WatchThe Masterlink Perpetual Calendar with sapphire dial reveals the full poetry of its movement, offering a captivating open worked view of its mechanical architecture. Engineered entirely in house, its groundbreaking asymmetrical perpetual calendar combines innovation, precision, and exceptional readability. A transparent expression of haute horlogerie, where design, engineering, and craftsmanship exist in perfect harmony.