Stuhrling Original Men's Automatic 18k-Gold-and-Steel and Leather Casual Watch, Color:Black (Model: 107.334541) Quality automatic movement; functions without a battery; powers automatically with the movement of your arm Reliable automatic-self-wind movement Beautiful rose-gold tone case and accents with 20 jewels Krysterna scratch resistant crystal Water resistant to 165 feet (50 M): suitable for swimming and showering