Authentic Breitling Superocean Heritage B01 Chronograph. Polished stainless steel case, sapphire crystal, polished stainless steel folding clasp, screw down crown. Features a blue dial with luminous silver tone stick hour and minute markers including Minute and 30-Minute sub-dials plus date display at the six o'clock position. Equipped with Swiss Automatic movement powered by Breitling 01 engine chronograph mechanism water resistant to 200 meters scratch resistant sapphire crystal round case shape measuring 42mm in diameter see-through case back.