Seiko Men's SNZG49 Seiko 5 Automatic Orange Dial Polyurethane Strap Watch Automatic movement; functions without a battery; powers automatically with the movement of your arm Functions without a battery; powers automatically with the movement of your arms Strong Hardlex crystal protects case from scratches and scrapes Stainless steel case and bezel; polyurethane strap with buckle closure Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion