Zenith Grande Port Royal Tourbillon 96.0550.4007/77.C550 This Men's Watch has Titanium bezel and Black TR90 Transparent dial with Silver-tone hands. The watch has following functions: hours, minutes, seconds, chronograph and tourbillon. Sapphire crystal protects both sides of this watch. This model has Black Carbon Fibre Strap with Titanium Fold Over buckle. Automatic Movement. Power reserve 50 hours. This model is water-resistant up to 50m/150ft. The Watch comes with 51x36 mm Titanium case.