The Rolex Sea-Dweller was essentially created to be a professional-grade tool watch. Each element that went into design emphasizes function over form. The artful symmetry of the dial, with its large luminous indexes, stemmed from the need to be easily legible whether on the surface or at depth, while the thicker and larger stainless steel Oyster case could withstand exposure to the crushing subaquatic force. Nonetheless, the Sea-Dweller is as impressive and good-looking as anything you would ever want to clap on your wrist.

Introduced at Baselworld in 2014, the reference 116600 is Rolex Sea-Dweller 4000 is the last 40-mm Sea-dweller created by the manufacturer, which was later replaced by the reference 126600. The watch carries the characteristics of the original Sea-Dweller featuring an upgraded cerachrome bezel with minute divisions all around, compared to only the first 15 minutes seen on the earlier models. The current example also features an upgraded glidelock bracelet, allowing divers to increase the bracelet length by 5mm to fit over their wetsuits. Preserved in like-new condition, the present example comes in a full set with the bezel protector still attached on the bezel, and is fresh to the market.