This timepiece is hailed as the most intricate complicated watch in the brand's history. Composed of 1,521 parts, it boasts 41 complications and 5 rare astronomical functions, with 13 patents applied. After eight years of development, the core challenge was to accommodate the newly manufactured 3655 movement and all components within a 45mm diameter case with a thickness of only 14.99mm, while ensuring wearing comfort and clear, easy-to-read display functions. This model features an 18K white gold case, paired with an innovative striking system (consisting of four gongs and four hammers), perfectly demonstrating Vacheron Constantin's dual breakthrough in traditional and modern technology.