Mens Zenith Grande Port Royal Open Concept Watch, rectangular-shaped titanium case (51mm length, 36mm width) with see-through sapphire crystal caseback, carbon fiber strap with triple-folding clasp, transparent dial with black hands and applied black Arabic numerals, open dial showing the escapement mechanism at 10 o'clock, power reserve indicator at 6 o'clock, sub-seconds dial at 3 o'clock, El Primero #4021B self-winding mechanical movement with chronograph functions, scratch-resistant sapphire crystal, water-resistant to 50 meters.