In a historical first for Rolex, its professional saturation diver’s watch is getting the two-tone steel and gold treatment – the new Sea-Dweller Rolesor is in Oystersteel with 18k yellow gold accents.

Rolex-speak for a combination of steel and gold, Rolesor gives the new Sea-Dweller a strikingly different look, but its specs remain exactly the same as on the version launched in 2017 to mark the 50th anniversary of the Sea-Dweller.

The dial is identical, except the hands and hour markers are in 18k yellow gold. And instead of the red lettering on the 2017 model that paid tribute to the original, however, “Sea-Dweller” is now inscribed in gilt print to match the gold accents.

All the deep sea diving features of the Sea-Dweller, namely the helium escape valve and the depth rating of 1,220m, remain intact and unchanged.

Like the all-steel Sea-Dweller, the two-tone version has a 43mm case, except with an 18k gold bezel and crown. Similarly, the bracelet remains the Oyster, but with 18k gold centre links.

Powering the watch is the new generation cal. 3235 with Paraflex shock absorbers and blue Parachrom hairspring, and a power reserve of 70 hours.

Pricing and availability

The Rolex Sea-Dweller Rolesor (ref. 126603) is priced at 15,300 Swiss francs, or about US$15,300.