Zodiac ZMX Men's ZO8545 Special Ops Analog Display Swiss Quartz White Watch Swiss-quartz movement Case diameter: 50mm Rubber strap. Durable sapphire crystal protects watch from scratches The white markings are illuminated by an led backlight, perfectly complementing the stamped design of the matte white dial. An anti-allergy white strap completes the look. Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving