Stuhrling Original Men's 541.331X2 Tourbillon Aureate Tourbillon Analog Display Mechanical Hand Wind Black Watch Stainless steel round shaped case with polished bezel Silver stamped dimple pattern on upper dial with black applied Roman numerals and exposed tourbillon movement on lower dial Mechanical-hand-wind Movement Case Diameter: 42mm Water resistant to 165 feet (50 M): suitable for swimming and showering