This Rolex Sea-Dweller, reference 126603, is a 43mm case in Steel and Yellow Gold used condition, featuring a Black Standard dial, a Black Ceramic Standard bezel, a Oyster bracelet. Priced dealer-direct and shipped fully insured.
Developed alongside COMEX for saturation diving in the late 1960s, the Sea-Dweller built its identity around the helium escape valve at nine o'clock. The 40mm 16600, made from 1988 to 2008, holds the benchmark spot for balanced proportions and deep liquidity. The 43mm 126600 brings a contemporary movement and Glidelock comfort. The Rolesor 126603 carries gold content and commands a meaningful premium over the steel references. Read the full Sea-Dweller buying guide ›
Started in 1905 by Hans Wilsdorf, Rolex remains the measure most mechanical watches get held against. The Geneva manufacture brought waterproofing, automatic winding, and date displays to the table, and the precision stuck. Recognition is universal, liquidity is strong, and steel references rarely sit. Submariner, GMT-Master II, and Daytona trade above retail on the secondary market, so dealer-direct pricing paired with a wire transfer keeps your entry number fair. Browse all Rolex ›
Rolex · 126603
Rolex Sea-Dweller, Steel and Yellow Gold, 43mm case, Black Standard dial, Black Ceramic Standard bezel.
