This steel watch pays homage to the legendary and assertive “cow horns” which adorned the 1955 manual winding chronograph, reference 6087, the first waterproof chronograph manufactured by Vacheron Constantin. Painted on the dial, the tachymeter scale allows you to determine an average speed using the central chronograph hand. Rare and authentic, its calfskin strap was created by Serapian, a Milanese house dear to Vacheron Constantin.