Invicta Men's 6551 Subaqua Noma IV Chronograph Stainless Steel Watch Precise Swiss-quartz movement Durable flame-fusion crystal; brushed and polished stainless steel case and bracelet with gunmetal stainless steel center links Chronograph functions with 60 second and 30 minute black subdials and 12 hour gold-tone subdial; day and date function Black perforated dial with luminous silver-tone hands and dome shaped hour markers; tachymeter on inner bezel; gunmetal stainless steel unidirectional outer bezel; screw-down crown with protective clasp and screw-down pushers Water-resistant to 1,640 feet (500 M)