Bulgari Diagono Professional Tachymetric Chronograph watch, round stainless steel case (40mm diameter, 11.3mm thickness) with tachymetric bezel that measures elapsed time and average speed, stainless steel bracelet with hidden clasp, white dial with Arabic numeral at 12 o’clock and chronograph functions, self-winding mechanical movement with certified COSC chronometer, scratch-resistant sapphire crystal, water-resistant to 100m, includes Swiss Official Chronometer Testing Institute certificate. Diagono Professional is the line dedicated to those in the hunt for painstaking design and extreme practicality in a sport watch. Characterized by an assertive yet understated appeal, the Bulgari Diagono Professional Tachymetric Chronograph allows one to measure elapsed time and average speed. Certified by COSC (Contr?le Official Suisse des Chronometers), these chronometers constitute a number of sport watches combining high reliability with extreme precision. Crucial for ground sports and ideal for timely-living men, the Diagono Professional Tachymetric Chronograph features three counters at the dial, which enable short, intermediate and total times to be calculated, at the same time as the tachymetric bezel indicates the average speed had to cover a unit of measurement of space (km, miles, and the like.). The Bulgari Diagono Professional Tachymetric Chronograph is to be had in a 40mm size in steel, two-tone, yellow gold, white gold, and platinum with leather strap or metal bracelet. It’s equipped with a COSC certified self-winding mechanical movement, and It’s water resistant as much as a depth of 100 meters.