Limited edition, Matte black?case made from a Breitling proprietary?lightweight, yet highly durable?material named Breitlight: The Breitlight material utilizes a lightweight high-tech polymer that?s been charged with composite fibers for strength and rigidity, it is over three times lighter than titanium and nearly six times lighter than steel, 50mm?Breitlight - Ultralight Polymer case, 16.95mm thickness, black dial,?Anti-Reflective Scratch Resistant Sapphire crystal,?Uni-Directional Rotating bezel, solid case back,?Push Button Deployant Buckle clasp, automatic movement,?Khaki military rubber strap, power reserve 70 h, 47 jewels, water resistant to 100m/330ft.