Case: 47 mm Black PVD Brushed Stainless Steel, Exhibition Back with Sapphire Glass Caliber: Automatic Valjoux 7750, Incabloc, Glucydur Balance, Nivarox Alloy Hairsprin Functions: Hours, Minutes, Subsidiary Seconds, Day and Date Chronograph: Hours, Minutes and Central Seconds Crown: 9 mm Knurled, Double O-Ring Sealed Crystal: Domed Sapphire Glass with Anti-Reflective Treatment on the Lower Side Water Resistant: 5 Atmospheres, 50 m/165 ft Dial: Black Carbon Fiber with White Luminous Numerals Hands: White Luminous Instrument Strap: Handmade Aviator Alligator