Mens Zenith Chronomaster T Watch, stainless steel case (40mm diameter) with see-through sapphire crystal caseback, crocodile leather strap with triple folding clasp, silver (#01) or black (#21) dial with silver hands and applied silver Roman numerals, day, date, month, and moonphase indicators, El Primero #410 self-winding mechanical movement with chronograph functions, scratch-resistant sapphire crystal, water-resistant to 30 meters.