Features: Stainless Steel Case Leather Strap Quartz Movement Sapphire Crystal Black Dial Analog Display Tachymeter Scale Chronograph Function Luminous Hands And Markers Date Display Pull/Push Crown Screwed Case Back Buckle Clasp 50m Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 13.5mm Approximate Lug Width: 20mm