The Breitling Chronomat B01 42 AB0134101L2A1 is a self-winding mechanical watch featuring a 42 mm stainless steel case and a green dial. It is powered by the in-house Breitling Manufacture Caliber 01, offering a power reserve of approximately 70 hours. The watch includes a chronograph function with 1/4th second, 30-minute, and 12-hour totalizers. Additional features comprise a unidirectional ratcheted bezel, screw-locked crown with two gaskets, and a cambered sapphire crystal glareproofed on both sides. Water resistance is rated at 200 meters (660 feet). The timepiece is completed with a stainless steel 'Rouleaux' bracelet. Reference number: AB0134101L2A1.