With Rolex original fitted green presentation box.
Consigned by a descendant of its first owner, the present watch is preserved in very attractive, original overall condition. It is from the last, so-called "transitional" series of the Double Red Sea-Dweller, distinguished by the designation "Rolex Patent Oyster Gas Escapement Valve - Rolex" engraved around the case back as opposed to the inscription across the case back of the earlier models. The transitional version is believed to have been in production between 1977 and 1978, the serial numbers ranging from 5.1 to 5.2 million.
The dial is from the "Mark IV" or "Mk 4" series of the Double Red Sea-Dweller, distinguished by the printing on its dial. The "double red" colour is of light red shade, when closely inspected the printing appears to be made up of a series of dots, rather than direct brush strokes or application. The two double red lines show different sizes: the second line, "SUBMARINER 2000", is smaller than the first line "SEA-DWELLER". The crown is large, the 5 tips and the large oval at the base of the Rolex crown are clearly defined.