A divers watch is personified in the Rolex Submariner. Whether it is stainless steel, a combination of stainless and gold, or just gold, it is a functional watch. Many call the hour hand with the three points a Mercedes symbol as it resembles one. Have your Rolex Submariner cleaned and serviced by a professional.
This watch is part of what they call their Oyster Perpetual line. The Submariner came out in 1954. While each watch has a similar look there are different model lines, the first of which was the 6200. While many realize this is a true diving watch you may not know that it has also been tested in the Antarctic. Details of each model number and year can be found in this list on Wikipedia.