Breitling watch chronomat 44 sierra silver ab011012g684435x a timepiece that optimises power performance and precision this breitling chronomat 44 watch has got to be one of the most impressive additions to the breitling chronomat watch collection and is a fan favourite aviation chronograph the unmissable stainless steel case measures to a comfortable 44mm and epitomises luxury and extravagance this breitling chronomat 44 watch comes with a striking silver dial set with sleek luminesce