Stainless steel case with a blue leather strap. Bi-directional rotating stainless steel bezel. Blue dial with luminous silver-tone hands and index hour markers. 1/100th second markers. Minute markers. Slide rule markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display between 4 and 5 o'clock position. Chronograph - three 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 - two gaskets. Solid case back. Case size: 40 mm. Case thickness: 13.50 mm. Round case shape. Band width: 20 mm / 18 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Additional Information: "Slide Rule" aka "Navigation Computer". The slide-rule allows to compute different airborne calculations such as fuel consumption, climbing times & converting miles into nautical miles or kilometers. Breitling Montbrilliant 01 Automatic Men's Watch AB0130C5-C894BLLT.