Aesthetically, the Sea-Dweller is near twin to the Rolex Submariner Ref. 16610. Some of the differences between these two watches are:
* The Rolex Sea-Dweller was designed to be a true deep diving watch and has a resistance depth rating of 4000 ft, which is 4 times the depth of the Rolex Submariner.
* The Rolex Sea-Dweller does not have a date magnifier giving a cleaner look to the watch.
* The Rolex Sea-Dweller case size is 4mm thicker than the Submariner.
* The Sea-Dweller has the Triplock Crown, which provides an added seal against water penetration inside the case.
