Bi-Metal Breitling Chronomat B13050.1 Polished steel case 40mm diameter. Automatic chronometer chronograph movement. Blue dial with applied polished numeral hour markers, date display at the 3 o’clock position. Uni directional bezel. Steel Bracelet with folding clasp. Box and papers dated December 1998. Service Papers dated September 2013. Our reference S21431.