Case material: Steel; Charge: Automatic; Conditions: Never worn Presentation condition : With dealer guarantee ; Model: Ingenieur Price on request Gmtbroker Reference: iw378509 IWC iw378509 Complete Details: To mark its cooperation as an official engineering partner of the MERCEDES AMG PETRONAS Formula One™ team, IWC rolled out the Ingenieur Chronograph Racer in stainless steel with an engraving of a Formula One racing car on the case back. Brushed/satin finished stainless steel with polished finished beveled corners. Brushed stainless steel bezel with an engraved & black filled Tachymetre scale. Strap: Black rubber with blue alligator leather inlay. Dial: Main silver dial with a very fine concentric circle brushed finished. Polished steel rimmed sub-dials. Silver sub-dials with a flat center & a concentric circle textured perimeter. Applied polished blued steel index hour markers with luminous fill. Black printed minute/seconds track on a raised black flange at the dial perimeter. Red “60” was inspired by the digital display on the steering wheel of the MERCEDES AMG PETRONAS Formula One™ Team racing car. Polished blued steel hands with luminous fill, hour & minute hands partially skeletonized. Date window located at the 6 o'clock position. Small running seconds hand in the sub-dial at the 6 o'clock position. Chronograph/Stopwatch function: Features a "Flyback" function which allows instant restarting of the chronograph with a single push of the button rather t