Introducing the Rolex Sea-Dweller Steel Black Dial 40mm ref. 16600T, a robust tool watch designed for deep-sea exploration. This model features a sturdy 40mm stainless steel case and a scratch-resistant sapphire crystal, ensuring durability in extreme conditions. The black dial is equipped with luminous index markers for optimal visibility, even in low-light environments. Powered by the self-winding Caliber 3135 movement, it offers a reliable 48-hour power reserve and chronometer precision. The stainless steel bracelet is designed for comfort and security, featuring a folding clasp for easy wear. With an impressive water resistance of over 300 meters, the Sea-Dweller is built to withstand the rigors of professional diving. Launched in 1988, the Rolex Sea-Dweller ref. 16600T combines functionality with a timeless design, making it an essential choice for divers and collectors alike. This watch embodies Rolex's legacy of precision and performance.