Seiko Men's 5' Japanese Automatic Stainless Steel Casual Watch, Color:Silver-Toned (Model: SNK307K) Precise 21-jewel Japanese-automatic movement; functions without a battery; powers automatically with the movement of your arm Durable mineral hardlex crystal; brushed and polished stainless steel case and bracelet Day function in english and spanish; date function Black dial with luminous silver-tone hands and dot hour markers, silver-tone stick markers; exhibition case back Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion