The Breitling Premier B01 Chronograph 42 AB0118371B1P2 is a self-winding mechanical watch featuring the in-house Breitling Caliber 01 movement. It offers a power reserve of approximately 70 hours and operates at a frequency of 28,800 vibrations per hour. The stainless steel case measures 42 mm in diameter and 13.65 mm in thickness, with a water resistance of 100 meters. The black dial includes silver-tone hands and index hour markers, along with a tachymeter scale around the inner rim. Functions include a chronograph with 1/4th second and 30-minute counters, as well as a date display at the 6 o'clock position. The watch is fitted with a black alligator leather strap and a stainless steel tang-type buckle. Reference number: AB0118371B1P2.