In developing the Grand Tonneau Ultra Thin, our goal was to go beyond expectations and create something truly exceptional. The distinctive case design challenged us to push our technical boundaries, resulting in the thinnest watch we have ever produced.
At just 6.4mm thick, it achieves an impressive balance of elegance and performance—maintaining a 5 ATM water resistance rating while incorporating a display caseback represents a significant technical milestone. The ultra-thin profile enhances comfort on the wrist while preserving the distinctive tonneau-shaped case that defines the Grand Tonneau collection.
