Mens Zenith Chronomaster XXT Open Watch, stainless steel case (45mm diameter) with see-through sapphire crystal caseback, crocodile leather strap with stainless steel triple-folding buckle, silver dial with rose gold hands and applied rose gold Roman numerals, open dial showing the escapement mechanism at 10 o'clock, power reserve indicator at 6 o'clock, El Primero #4021 self-winding mechanical movement with chronograph functions, scratch-resistant sapphire crystal, water-resistant to 30 meters.