Breitling Navitimer 01 Chronograph 43MM Stainless Steel Black Dial Silver Subdials Automatic Black Leather Strap AB012012/BB01 KA4734 Stainless steel case with a black leather strap. Bidirectional stainless steel bezel. Black dial with luminous hands and index hour markers. Minute markers. Tachymeter scale appears around the outer rim. Dial Type: Analog. Date display appears between the 4 and 5 o'clock positions. Chronograph - three sub-dials displaying: 12 hours, 30 minutes and 60 seconds. Automatic movement. Scratch resistant sapphire crystal. Solid case back. Case diameter: 43.70 mm. Case thickness: 17.10 mm. Deployment clasp. Water resistant at 30 meters/ 100 feet. Functions: hours, minutes, seconds, date, chronograph, tachymeter.