Hamilton is established as one of the leading watchmakers in the world with a proven reputation for creating elegant and reliable timepieces. Brushed stainless steel and carbon fiber case, Sapphire crystal screw-in caseback, Mach number scale displayed on the bezel, by selecting the calculated air speed and altitude, the X-Mach scale will display the moving speed relative to the speed of sound caseback, Black dial, Silvertone applied Arabic numerals and indices, Silvertone luminescent hands, Sweep second hand for the chronograph, Small seconds subdial at the 9 o’clock, Silver ring chronograph minutes subdial at the 12 o’clock and hours at the 6 o’clock, Day and date at the 3 o’clock position, Brown leather strap with white stitching, Pin buckle, Sapphire crystal, Screw-down crown, Swiss automatic chronograph movement, Valjoux caliber 7750, Power reserve of 42 hours, Water resistance to 10 ATM/100 meters/330 feet, Case measurements are 44 mm in diameter x 16 mm thick, Strap measurements are 22 mm wide x 8 inches long.