Straight from the website:

Refined and elegant, the Navitimer Automatic 41 combines the historic appeal of a true icon with the sophistication of a contemporary timepiece. Available in a variety of materials including stainless steel and 18k red gold, the 41 mm case features a beaded bezel and a range of elegant dial colors. Offered either with a matching bracelet or alligator strap that fits both a stainless-steel pin or folding buckle, the Navitimer Automatic 41 is powered by the Breitling Caliber 17, a COSC-certified chronometer.

My favorite Breitling.