The Rolex Sea-Dweller reference L - 126600/126660 O is a 17mm timepiece in Steel presented in unworn condition. Every watch is inspected and authenticated by our specialists before it is offered, so you can buy with confidence.
Developed alongside COMEX, the saturation-diving specialists, in the late 1960s, the Sea-Dweller sits in Rolex's professional dive range between the Submariner and Deepsea. Its hallmark is the helium escape valve at nine o'clock, which equalizes pressure as divers decompress. On steel references the date carries no cyclops magnifier, a choice enthusiasts admire. When authenticating, we look closely at that valve and dial. The Rolesor option extended the line's reach. Read the full Sea-Dweller buying guide ›
Today Rolex dominates the prestige sports-watch market and functions as much as an asset class as a timepiece. The brand, founded in 1905 by Hans Wilsdorf, pioneered waterproofing, self-winding movements, and date displays from its Geneva manufacture. Our authentication covers the Oyster case, Perpetual movement, and Cyclops lens. Since steel references trade above retail and supply stays tight, expert guidance helps you buy the right piece. Browse all Rolex ›
Rolex · L - 126600/126660 O
A 17mm Steel Rolex Sea-Dweller — authenticated and ready to wear.
