Zenith Men's 0320854021.51C El Primero Analog Display Swiss Automatic Blue Watch Round watch with blue skeleton dial featuring tachymeter track, exhibition case back, rhodium-plated hands and indices, and sweep second hand Power reserve indicator at 6 o'clock, small seconds dial at 9 o'clock, and 30-minute dial at 3 o'clock 42 mm stainless steel case with domed anti-reflective sapphire dial window 39-jewel Swiss automatic movement with 50-hour power reserve and analog display Alligator-leather band with protective rubber lining and triple folding clasp Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving Blue open dial Stainless steel case and blue leather strap Swiss-automatic Movement Case Diameter: 42mm Water Resistant To 330 Feet