Four years in the making, the new time-only Breitling Caliber B31 brings enhanced reliability in a new 28 mm x 4.8 mm dimension. Its unique architecture incorporates Breitling’s instantly recognizable signature components: the free-sprung balance wheel for improved precision, and the skeletonized bidirectional oscillating weight powering the automatic movement. #Breitling #TopTime #B31 #BreitlingUSA