Stuhrling Original Men's 537.331X1 Tourbillon Grand Imperium Limited Edition Mechanical Black Watch Round watch in polished stainless steel with hand-wind mechanical movement and analog display against gray hydraulically-pressed dial Limited-edition two-hand movement with open-heart tourbillon complication Antireflective sapphire crystal dial window Deployment push-button clasp with buckle closure on genuine alligator leather strap Water resistant to 165ft (50m): suitable for swimming and showering Polished stainless steel round shaped case with protective sapphire crystals Limited edition, two-hand movement with open-heart tourbillon complication Grey hydraulically pressed dial with black faceplate and individually applied stainless steel roman numerals Black genuine alligator leather strap with stainless steel deployment push button clasp Water resistant to 165 feet (50 M): suitable for swimming and showering