The Rolex Submariner Date 126613LB is a luxury automatic watch that is known for its stylish design, Swiss craftsmanship, and high-quality materials. This particular model is made of gold/stainless steel and features a beautiful blue dial, oyster bracelet, and sapphire crystal. The watch is 41mm in size and is water-resistant to 100 meters. It also features an in-house caliber 3235 movement, which is a testament to its accuracy and reliability.