Authentic Longines automatic watch model L2.628.4.51.6, featuring a stainless steel case and strap with a hidden folding push-button clasp, black barleycorn dial, sapphire crystal glass resistant to scratches, Automatic Self Winding Caliber L619.2 movement containing 21 jewels, measuring 38mm in diameter and 9.5mm thick, water resistant up to 30 meters / 100 feet, equipped with a winding crown.