The Zenith Defy Skyline, reference 49.9300.3620/78.I001, features a 41mm ceramic case and showcases a skeleton dial. This automatic watch is powered by the Zenith caliber El Primero 3620 SK, which includes a foudroyante function. Released in 2023, it combines modern materials with advanced watchmaking technology for a distinctive look and performance. The design emphasizes transparency, allowing the intricate movement to be appreciated through the open dial.