Features: Stainless Steel Case Nylon Strap Quartz Movement Caliber: 8T63 Sapphire Crystal Black Dial Analog Display Chronograph Function Tachymeter Scale Luminous Hands And Markers Date Display 12/24 Hours Display Pull/Push Crown Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 43.00 mm Approximate Case Thickness: 11.60 mm Approximate Lug Width: 22.00 mm