BRT features sleek color schemes of cool darks and bright lights to create a timepiece that’s always on trend. The black ion plated stainless steel with green resin inlay compliments the black polyurethane strap and black dial with green accents. Features include a 1/5-second chronograph measuring up to 60 minutes, 12/24-hour time, date feature and water resistant to 100 meters. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B620.