The Blancpain Métiers d'Art ref: 6615B-3612-55B features a 45mm case crafted from rose gold. This timepiece showcases a grey skeleton dial, allowing for a view of the intricate movement within. It is powered by the manual winding Blancpain caliber 15B, ensuring precision and reliability. The design emphasizes transparency and artistry, making it a notable addition to any collection.