The Blancpain Métiers d'Art ref: 6615-3612-55B features a 45mm case crafted from rose gold. This timepiece showcases a grey skeleton dial, revealing the intricate workings of the watch. It is powered by the manual winding Blancpain caliber 15B, ensuring precision and reliability. The design emphasizes transparency, allowing for a view of the movement while maintaining a sophisticated aesthetic. This model exemplifies the brand's dedication to traditional watchmaking techniques.