Amazon.com Product Description
Take flight with the highly reliable, stylishly designed National Geographic Aviator men's stainless steel watch, which offers a unique solar-powered movement. It also includes an integrated slide rule for quick calculations ranging from flight fuel consumption to currency conversion. The silver watch case measures 46mm wide (1.81 inches) and is topped by a unidirectional bezel with slide rule markings in a yellow band that slope down toward the black dial and coin-edged detailing for a firm grip under any condition. The dial is supplemented with luminous hour markers, luminous hands (with seconds hand), and a date window at 3 o'clock. It's completed by a stylishly sporty polyurethane strap in yellow. Other features include a scratch-resistant mineral crystal and water resistance to 30 meters (99 feet)--enabling it to withstand splashes and accidental dunks into the water, but not suitable for swimming.
Product Description
National Geographic Men's Aviator Solar Slide-Rule Bezel Watch #NB771A