Invicta Men's 6584 Subaqua Noma IV Collection Chronograph Black Polyurethane Watch Precise Swiss-quartz movement Durable flame-fusion crystal; 18k gold-plated stainless steel case; black polyurethane strap with 18k gold-plated stainless steel inserts Chronograph functions with 60 second, 30 minute and 1/10th of a second subdials; day and date function Black perforated dial with blue and gold-tone hands and hour markers; luminous; black ion-plated stainless steel unidirectional bezel; tachymeter on inner bezel; black screw-down crown with protective clasp and screw-down pushers Water-resistant to 1,640 feet (500 M)