This watch in steel pays tribute to the legendary and assertive “cow horns” that adorned the 1955 manual-winding chronograph, reference 6087, the first water-resistant chronograph manufactured by Vacheron Constantin. Painted on the dial, the tachymeter scale makes it possible to determine an average speed thanks to the central hand of the chronograph. Rare and authentic, its calfskin-leather strap was developed by Serapian, a Maison from Milan dear to Vacheron Constantin.