Features: Stainless Steel Case Stainless Steel Bracelet Quartz Movement 8 Jewels Mineral Crystal Black Dial Analog Display Chronograph Function Tachymeter Scale Luminous Hands And Markers Date Display Screw Down Crown Screwed Case Back Deployment Clasp 100m Water Resistance Approximate Case Diameter: 44.00 mm Approximate Case Thickness: 11.50 mm