Oris Big Crown ProPilot X Cal 400 Ref. 01 400 7778 7153 $4,300New Oris 39mm Big Crown ProPilot X Cal 400, Grey Dial, Titanium Bracelet,, Ref. 01 400 7778 7153Oris’ joy of mechanics comes to the fore with their new ProPilot X Calibre 400, a titanium watch inspired by more than a century of aviation heritage. Engineered entirely in house and under display thanks to the exhibition display is the new generation caliber 400. A high performance, anti-magnetic, self winding movement, offering a five day power reserve and a 10 year warranty. The titanium case and bracelet offer a durable, lightweight, and sleek aesthetic that wears comfortably. This version of the New ProPilot X Cal 400 comes with the grey dial and date reference at the 6 hour.