Breitling Watch Chronomat 44 Gray Pearl Diamond AB011012/G686/158S. The leading model among the Breitling collections, the Breitling watches Chronomat 44 reflects a universe dedicated to performance, sporting feats and surpassing personal limits. The sturdy case housing Manufacture Breitling Caliber 01 boasts water resistance to a depth of 500m, a feat worthy of a divers watch.