The Sierra Chrono is a robust 43mm chronograph designed for field and tactical use. It features a brushed stainless steel case and bracelet, a black sunburst dial with Lumibrite hands and markers, and a 60-click unidirectional bezel. Powered by a Swiss quartz movement, it offers a 3-year battery life and 50m water resistance. The sapphire crystal and screw-down crown enhance its durability. This model is ideal for those seeking a rugged yet stylish timepiece.