Invicta Men's Subaqua 5512 Case Diameter : 50 mm Precise and high-quality Swiss-quartz movement Durable mineral crystal; stainless steel case; blue Rubber strap Chronograph functions with 60 Second, 30 Minute and 1/10th Second Sub-dials; date function Luminous hands; blue dial; tachymeter; screw down crown with Protective Cover; screw Down Pushers Water-resistant to 1,640 feet (500 M)