Features: Stainless Steel Case Stainless Steel Bracelet Automatic Movement Caliber: 3861 26 Jewels Hesalite crystal With OMEGA Logo in The Centre Black Dial Analog Display Power Reserve Up to 50 Hours Anti-Magnetic Chronometer Tachymeter Scale Chronograph Function Luminous Hands And Markers Screwed Case Back Deployment Clasp 50M Water Resistance Approximate Case Diameter: 42.00 mm Approximate Case Thickness: 13.20 mm Approximate Lug Width: 20.00 mm nbsp;