The technological fruit of TAG Heuer’s close partnership with Formula 1, this ultra-performance sports chronograph is totally built for speed. The 43mm tonneau-shaped case is fronted by a black dial framed by a tachymeter bezel in black titanium carbide-coated steel, material that’s tough enough to be used in Formula 1 racing. The fluted crown makes for easy handling even with racing gloves and the double-security bracelet is designed with a driver extension to fit over a racing suit.