Blue Dial and Stainless Steel band. World's first big/day/date chronograph, textured dial with genuine MOP *chronograph eyes, enamel crown with inset logo.Chronograph is a timepiece that also operates as a stopwatch. It permits the measurement of a desired interval time,and features start/stop/reset functions. An Invicta chronograph can measure time within intervals of 1/60 of a second.