Stuhrling Original Men's Automatic Stainless Steel and Leather Dress Watch, Color:Black (Model: 26R.33152) Quality automatic movement; functions without a battery; powers automatically with the movement of your arm Reliable automatic-self-wind movement 20 jewels Grand calendar with retro-grade date complication, day and month sub-dials, and year indications Krysterna scratch resistant crystal Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion