Invicta Men's 12491 Bolt Analog-Digital Display Swiss Quartz Black Watch Swiss quartz movement Flame fusion crystal; stainless steel case with gunmetal ion-plated stainless steel cable wire accents; black polyurethane strap with stainless steel and gunmetal ion-plated stainless steel inserts Swiss-quartz Movement Case Diameter: 51mm Water resistant to 660 feet (200 M): suitable for recreational scuba diving