Celebrating Breitling\'s partnership with epic British motorcycle manufacturer, Norton, this Premier B01 chronograph is COSC-certified and reflects the innovative and adventurous streak in both brands. At A Glance  Presented on a raw brown leather strap 42mm stainless steel case with a polished bezel and 100m water resistance Cambered and scratch-resistant sapphire crystal that\'s glareproofed on both sides Black dial with golden hands and Arabic numeral hour markers Two chronograph sub dials Date window at 6 o\'clock Tachymeter scale flange Norton logo engraved on a plate on the left side of the case Transparent caseback Powered by the COSC-Certified Breitling Manufacture Caliber 01 movement Approximately 70 hour power reserve