BLACKHAWK! Deep Sea Operator Watch with Black Case Grade 5 Titanium case Machined from billet Stock Swiss made eta F07111 Quartz movements for extreme accuracy Highly corrosion-resistant Titanium saves weight and improves durability Case is precision Machined for maximum waterproofness Scratch- resistant Crystal with anti-reflective Coating Meets ISO 6425 water-resistant standards (withstands depths of 300 m) Finest Miyota quartz movements for extreme accuracy Constructed of highly corrosion-resistant 316L stainless steel Case is precision milled for maximum waterproofness Scratch-resistant sapphire crystal