Breitling B2, chronograph wristwatch

steel, 44 mm round case. ref. A42362 - 177660 black dial with tachymetric and telemetric scale, luminescent hands and indexes and numbers, three auxiliary dials for the chronograph, date at 4.30, unidirectional bezel, sapphire crystal, mechanical movement with automatic winding, original steel bracelet complete with small additional watch independent with quartz movement and daily time indication, signed dial and movement Complete with box