Details: Stainless steel case with a stainless steel bracelet. Bi-directional rotating stainless steel bezel. Aurora blue dial with luminous silver-tone hands and index hour markers. Minute markers. Slide rule markers around the outer rimm. Dial Type: Analog. Luminescent hands and markers. Date display between the 4 and 5 o’clock positions. Chronograph – three silver sub-dials displaying: 60 second, 30 minute and 12 hour. Breitling calibre 01 automatic movement with a 70-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape. Case size: 46 mm. Case thickness: 14.51 mm. Band width: 24 mm. Band length: 7 inches. Deployment clasp with a push button release. Water resistant at 30 meters / 100 feet. Functions: chronograph, date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Item Variations: AB012721-CA05-453A. Additional Information: “Slide Rule” aka “Navigation Computer”. The Slide-Rule complication can compute different airborne calculations such as fuel consumption, climbing times & converting miles into nautical miles or kilometers. Breitling Navitimer 1 Chronograph Automatic Chronometer Aurora Blue Dial Men’s Watch AB0127211C1A1.