Men's rugged chronograph watch National Geographic timepiece designed with two-tone stainless steel case and bracelet Watch features white dial with luminous hands and numbers Silver chronograph subdials Date display at 4 o'clock Mineral crystal German quartz movement Water resistant to 50 meters Folding clasp with safety lock Case dimensions: 10mm H x 42mm W x 47mm L Bracelet dimensions: 8.0 in. L x 22mm W All measurements are approximate and may vary slightly from the listed dimensions. Men's watch bands can be sized to fit 7.5-inch to 8-inch wrists. Extra links are available through the manufacturer. (We do not provide this service).