Case material: Steel; Charge: Automatic; Conditions: Never worn Presentation condition : With dealer guarantee ; Model: Ingenieur Price on request Gmtbroker Reference: iw378508 IWC iw378508 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. Bracelet Brushed/satin finished stainless steel with polished finished beveled corners on each link. Patented sizing system, allows the removing & adding of links very easy, no special tools or screwdrivers necessary. Dial: Main grey "Ardoise" dial with a fine concentric circle brushed finished. Polished steel rimmed sub-dials. Black sub-dials with a flat center & a concentric circle textured perimeter. Applied polished stainless steel index hour markers with luminous fill. White 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 stainless 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