Description: Rolex Sea-Dweller 16600 Pre-owned Rolex Sea-Dweller ref 16600 (1997 – 1998) became one of the longest-running and most important Sea-Dweller references in Rolex history, produced from the late 1980s to around 2009. It carried forward much of the design language introduced by the earlier “Triple Six” generation, including the sapphire crystal and impressive 1,220-meter depth rating, while refining the formula into what many collectors now consider