Wrist Armor Men's WA156 C4 Stainless Steel Analog Display Swiss Quartz Watch with black Silicone Strap Swiss analog quartz movement 44.5 mm 316l stainless steel case with screw-down crown K1 shatterproof crystal A percentage of every Wrist Armor watch sold is donated to the United States military Water resistant to 660 feet (200 M): suitable for recreational scuba diving