The Navitimer Chronograph GMT 46 features a blue dial and dual time zone system. An additional central hand displays the time on a 24-hour scale at any destination and the case back is engraved with time zones of the world's major cities. Its 46mm case, which has a bidirectional rotating bezel and Breitling's iconic circular slide rule, houses the self-winding chronograph movement, powered by a Breitling 24 calibre. On a black alligator or leather strap, or Navitimer stainless steel bracelet.