Rolex Sea-Dweller Double Red 1665

Rolex reference 1665 Sea-Dweller, commonly known as the "Double Red Sea-Dweller" (DRSD). This specific model is highly sought after by collectors due to the two lines of red text on its black dial, which read "Sea-Dweller" and "Submariner 2000". This is the first Rolex wristwatch designed for professional saturation diving and featured a groundbreaking Helium Escape Valve (HEV) on the side of the case, allowing built-up gases to escape during decompression. The watch has a 40mm stainless steel case, an automatic chronometer movement, a rotating black bezel, and is fitted with a stainless steel Oyster bracelet. The text on the dial indicates it is guaranteed waterproof to 2000 ft, or 610 meters.