Perrelet Men's A1051/5 Turbine XL Stainless Steel Watch With Black Rubber Band Round watch featuring fanning sandwich dial in black and blue with stenciled seconds indices at outer dial 48 mm stainless steel case with antireflective sapphire dial window Swiss automatic movement with analog display Ribbed rubber band with buckle closure Water resistant to 50 m (165 ft): In general, suitable for short periods of recreational swimming, but not diving or snorkeling.