This Shield Sonar watch features a 316L Surgical-Quality Stainless Steel Case and a full-function chronograph powered by a Japanese Seiko Quartz Movement. The watch is protected by a Sapphire-Coated Mineral Crystal and has a logo-engraved stainless steel caseback with a screw-down crown. It is equipped with a rubber strap and a logo-engraved stainless steel clasp. For visibility in low light, it includes Swiss Super Luminova Hands and Swiss Super Luminova Markers. The watch also has a date indicator and a 24-hour sub-dial. With a 47mm diameter and 20 ATM Water Resistance, it is approved for professional deep diving.