Model: GC10116Case: 47mm Brushed Stainless Steel, Exhibition Back with Sapphire GlassCaliber: Automatic Valjoux 7750, Incabloc, Glucydur Balance, Nivarox Alloy HairspringFunction: Hours, Minutes, Subsidiary Seconds, Day and Date. Chronograph: Hours, Minutes and Central SecondsCrown: Knurled, Double O-ring SealedCrystal: Domed Sapphire Glass with Anti-Reflective Treatment on the Lower SideWater Resistant: 5 Atmospheres, 50m/165ft.Dial: Black with Orange Luminous NumeralsHands: White Cathedral with Orange LuminousStrap: Handmade Classic Alligator, Ref: 22-20R-A.016Options: Leather or Stainless Steel Bracelet