Features: 316L Stainless Steel Case Leather Strap Quartz Movement Caliber: VK64 Sapphire Crystal Matte Black W/Super-LumiNova C3 Dial Analog Display Chronograph Function Luminous Hands And Markers 12/24 Hours Display Rotating Ceramic Bezel Pull/Push Crown Screwed Case Back Buckle Clasp 100M Water Resistance Approximate Case Diameter: 42mm Approximate Case Thickness: 15mm Approximate Lug Width: 20mm