Authentic Breitling Classic Avi Chronograph model Y233801A1B1A1. Features a stainless steel case and bezel, black dial with red hands, Arabic numeral hour markers, minute track and three sub-dials displaying 60 second, 30 minute, and 12 hours. Powered by the Breitling Caliber 23 movement with automatic winding and up to 48 hours power reserve including a Power Reserve function. Includes Chronograph functions for measuring time accurately from minutes down to seconds. Equipped with scratch-resistant sapphire crystal. Round case shape measures 42mm diameter and has a thickness of 14.7mm, solid case back. Water resistant to 100 meters / 330 feet.