Silver-tone stainless steel case on a leather strap. Brown dial with silver-tone hands and index hour markers, featuring luminescent coating. Bi-directional rotating bezel in silver-tone stainless steel. Analog dial type with minute markers around the outer edge. Chronograph functions via three sub-dials indicating 24hr/60sec, 30min, and 12hr elapsed time. Powered by Breitling Calibre 21 Automatic movement (based on ETA 7751 Valjoux) with 25 Jewels, beats per hour: 28800, power reserve ~42 hours. Scratch-resistant sapphire crystal glass. Solid case back. Round shape, 43mm diameter. Includes buckle clasp closure. Water resistance up to 30 meters / 100 feet. Functions include chronograph, month indicator, date display, day of the week sub-dial, GMT function with second time zone capability, hour and minute indications, small seconds sub-dial.