Features: Stainless Steel Case Nylon Strap Quartz Movement Caliber: 8T67 Sapphire Crystal Grey Dial Analog Display Chronograph Function Tachymeter Scale Luminous Hands And Markers Date Display Pull Out Crown Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 39.5mm Approximate Case Thickness: 12mm Approximate Lug Width : 20mm