Swiss Legend Men's 10125-BB-11 Challenger Analog Display Swiss Quartz Black Watch Chronograph functions with 60 second, 30 minute and day of the week sub dials; date window at 4:00 Black dial with silver tone and white hands, hour markers and arabic numerals; luminous; unidirectional bezel; screw-down crown; tachymeter; sapphitek crystal; black ion-plated stainless steel case and bracelet Swiss-quartz movement Case diameter: 49mm Water resistant to 660 feet