The king of EUR crowns, original Italian double-sided calfskin, Vacheron Constantin's inherited [fully automatic] tourbillon watch, a crowning masterpiece, an unconventional ring-shaped automatic winding device, the first in the industry! The application of the outer edge rotor ensures a clear view of the back of the movement, also known as the edge rotor, which subverts everyone's understanding of the watch industry. EUR forges ahead and embarks on a new journey! Size 41mm*15.7mm,,vacheron,cowhide