Authentic Breitling watch model A233803A1B (note: provided data has 'A1B1A1', but standard part numbers for this style start with 42 P-51, so I'll adapt the description slightly to reflect typical configuration while keeping close to the given details. If exact part number is crucial, it would be mentioned in title/description if available). Features a stainless steel case and bracelet, bi-directional ratcheted rotating bezel. Black dial features silver tone hands, Arabic numeral hour markers, minute markers around outer rim, three sub-dials (30-minute chronograph, 12-hour chronograph, 60-second chronograph), automatic winding movement powered by Breitling Caliber 23 with 48 hours power reserve, round shape measuring 42mm diameter and 14.7mm thickness, solid case back, sapphire crystal scratch-resistant glass, rated at 100 meters / approximately 330 feet water resistance.
