Rolex Sea-Dweller watches are iconic timepieces that were designed specifically for professional divers. The first Rolex Sea-Dweller was introduced in 1967 and was designed in collaboration with the French company COMEX to withstand extreme underwater conditions.

Over the years, Rolex has made several modifications to the cheap Rolex Sea-Dweller, including increasing the case size, improving the water resistance, and updating the movement to improve accuracy. Today, the Rolex Sea-Dweller is available in various sizes, ranging from 40mm to 43mm, and is still a popular choice among professional divers and watch enthusiasts.