Mens Zenith Chronomaster XXT Tourbillion Watch, 18kt white gold case (45mm diameter) with see-through sapphire crystal caseback, crocodile leather strap with 18kt white gold triple-folding buckle, black dial with silver hands and applied silver hour indicies, open dial showing the escapement mechanism at 10 o'clock, date indicator around the carriage, El Primero #4005 self-winding mechanical movement with chronograph functions, scratch-resistant sapphire crystal, water-resistant to 30 meters.