Tag heuer watch grand carrera chronograph calibre 17 the sleek styling and exclusive rotating system make the grand carrera calibre 17 rs automatic chronograph a must for connoisseurs of chronographs and motor racing inspired by gt race car engine design the tag heuer rotating system replaces traditional hands with dashboard style discs the readability is optimum while maintaining effortless elegance on the grand carrera calibre 17 rs chronograph the rotating systems show a permanent second