Stylishly designed for both professional and casual dress, this high performance National Geographic TimeTrekker analog/digital watch for men is engineered with features and functions that meet the demands of professional explorers, adventurers and world travelers. It has a digital interior face that's framed by an analog dial with luminous-tipped skeleton hands, Arabic numeral hours, and small minute indexes. The digital functions of this watch include a precisely timed, Swiss quartz chronograph as well as a tachymeter for calculating time over distance. The silver-tone watch case measures 46mm wide (1.81 inches), is topped by a flattened bezel with screw-down accents, and is completed by a handsome black leather strap with white contrast stitching. Other features include a scratch-resistant mineral crystal, and water resistance to 50 meters (165 feet)--suitable for swimming but not for ...