Stuhrling Original Men's Automatic Stainless Steel and Leather Sport Watch(Model: 26R.3315E15) 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