The Bvlgari Diagono Professional Aqcua SD40SSDAUTO watches are distinctive for their rigorous design and superb technical qualities. Certified by COSC (Contrôle Officiel Suisse des Chronomètres), these chronometers in the Bulgari Diagono Professional Aqcua SD40SSDAUTO constitute a collection of sport watches combining high reliability with extreme precision. Bvlgari Diagono Professional Aqcua SD40SSDAUTO SCUBA diving watches are specially designed for water-sports enthusiasts, combining absolute reliability and precision with the elegance of an essential design. Bvlgari Diagono Professional Aqcua Watches are the ideal choice for those who want a high-tech diving watch without forgoing aesthetics. Bulgari Diagono Professional Aqcua SD40SSDAUTO Watch. The Bvlgari Diagono Professional Aqcua SD40SSDAUTO has a flat black-painted brass dial with hand-applied luminescent round hour indexes and numerals ?12? and ?6? with brass, rhodium plated luminescent hands for optimal readability and radiance. The Bvlgari Diagono Professional Aqcua SD40SSDAUTO has a 40 mm stainless steel case, unidirectional rotating bezel, and a scratch-resistant sapphire crystal with nylon gasket. Stainless steel, satin finished back-case with the BVLGARI logo, "Diagono Professional", model reference, ?fabriqué en Suisse? and individual number engraved. Stainless steel screwed crown. The Bvlgari Diagono Professional Aqcua SD40SSDAUTO is water-resistant to 300 meters.