Mens Zenith Grande Port Royal Power Reserve Watch, rectangular-shaped stainless steel case (51mm length, 36mm width) with see-through sapphire crystal caseback, black rubber strap with triple-folding clasp, silver (#01-C507) or black (#21-C503) guilloche dial with silver hands and painted luminous Arabic numerals, power reserve indicator at 2 o'clock, sub-seconds dial at 9 o'clock, Elite #685 self-winding mechanical movement, scratch-resistant sapphire crystal, water-resistant to 50 meters.