Louis Erard Men's 31218AA11.BDC21 1931 Stainless Steel Watch with Leather Band Round watch with moon phase window, sunray dial, and exhibition case back Dubois depart 9000 automatic self-wind movement with analog display Protective anti-reflective sapphire crystal dial window Features croco-embossed leather band, day, date, and month window, and deployant buckle Water resistant to 165 feet (50 M): suitable for swimming and showering