ROLEX, Oyster Perpetual, Superlative Chronometer

ROLEX, Oyster Perpetual, Superlative Chronometer, Officially Certified, "Cosmograph Daytona", ref. 116520 nº D657100 for men with steel case and bracelet.
Black dial with luminescent stick numbering, tritium-treated stick-type hands; indicators: chrono minutes at 3, chrono hours at 6, continuous seconds at 9, chrono seconds in the center; "Daytona" in red at 6 o'clock. Steel case with tachymeter scale engraved bezel. Ribbed crown, screw-fitted, personalized and protected. Threaded and grooved chrono pushbuttons. Sapphire crystal. Oyster bracelet in steel, with double finishes, polished and satin; Deployant buckle customized with the signature logo. Automatic movement, Glucydur Microstella balance wheel with oscillating micrometric adjustment at 28,800 alternations / hour, Breguet watch, chronometer certified by C.O.S.C. (Contrôle Officiel Suisse del Chronométres). Guaranteed impermeability up to 10 atmospheres of pressure. Running state.