This Defy El Primero 21 has a black ceramic coated aluminum case with a black rubber & croco strap. Skeleton dial with black and blue rimmed subdials.Faceted ruthenium plated hands with luminous fill and applied luminous index hour markers. El Primero Chronograph with a 60 seconds sub-dial counter located at the 6 o'clock position, 30 minute sub-dial counter located at the 3 o'clock position and seconds sub dial located at the 9 o'clock position. Power reserve indicator below the 12 o'clock position. Zenith El Primero Caliber 9004 has an approximate power reserve of 50 hours.