Stuhrling Original Men's 502.331X1 Tourbillon Circular Limited Edition Mechanical Black Watch Round watch in polished stainless steel with limited edition two-hand movement and open-heart tourbillon complication Mechanical hand-wind movement with analog display Antireflective sapphire crystal dial window Stainless steel tang buckle closure on genuine crocodile strap Water resistant to 165 feet (50 M): suitable for swimming and showering Polished stainless steel case with protective sapphire crystal on front and back Limited edition, two-hand movement with open-heart tourbillon complication Black hydraulically pressed dimple design outer dial with brushed finish face plate and stainless steel roman numerals Black genuine crocodile strap with stainless steel tang buckle Water resistant to 165 feet (50 M): suitable for swimming and showering