sentences:  The Rolex Sea-Dweller 2000 watch case has a diameter of  mm and a thickness of .The Sea-Dweller Submariner 2000 models were succeeded by the Rolex Oyster Perpetual Sea-Dweller 4000 (4000 ft = 1220 m) model, with an increased depth rating to .The last Comex Sea-Dweller 4000 Rolex reference number is 16600.