Cornes De Vache 1955 5000H/000A-B582 Full Set - Steel case on leather strap, Ardillon buckle, gray dial, baton numeral indexes, chronograph, sapphire crystal, transparent back, mechanical movement. With original box and papers, complete set! A true piece of history signed Vacheron Constantin... 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