Sector Men&#39;s Swiss Quartz Stainless Steel and Polyurethane Casual Watch, Color Precise Swiss-Quartz movement Scratch-resistant sapphire crystal; Black ion-plated stainless steel case; Black polyurethane strap Chronograph functions with 60 second, 30 minute and day of the week subdials; Date function White dial with silver-tone hands, black hour markers and Arabic numerals; Luminous; Unidirectional bezel; Screw-down crown; Tachymeter on inner bezel Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving