Rolex Sea Dweller Deep Sea 116660 - Black Dial - NOS

The Rolex Sea-Dweller Deepsea stands among the most technically accomplished professional dive watches ever created, embodying Rolex's long-standing expertise in underwater exploration, developed over decades of collaboration with professional divers and pioneering deep-sea missions. Conceived to withstand extreme pressures, it incorporates the sophisticated Ringlock System, a helium escape valve for saturation diving, and a reinforced domed sapphire crystal, all engineered to ensure structural integrity and reliability at depths far beyond conventional limits. Reference 116660 represents a bold and highly specialised expression within the Sea-Dweller lineage, marking a significant evolution in both engineering and design. Crafted in corrosion-resistant stainless steel, it offers uncompromising durability while maintaining a distinctive and imposing presence on the wrist, further accentuated by its substantial proportions. The unidirectional rotating bezel, fitted with a virtually scratchproof Cerachrom insert, ensures precise dive timing, while the solid Oyster bracelet—equipped with Glidelock and Fliplock extension systems—provides exceptional adaptability over diving suits, reinforcing its professional vocation. This example is characterised by its deep black dial featuring Chromalight luminescence, delivering a long-lasting blue glow that guarantees outstanding legibility even in the most challenging low-light or underwater conditions. The Maxi dial configuration, with enlarged hour markers and broad hands, enhances visibility and reinforces the watch's tool-oriented identity, while maintaining the unmistakable aesthetic codes that define the Sea-Dweller family. Accompanied by its full set, including box, outer box, warranty, and warranty holder, this watch was sold in 2010 with Italian guarantee and is preserved in new old stock (NOS) condition. Retained by a single owner, it still bears its original factory protective stickers, presenting today as virtually unworn—an increasingly rare and highly desirable characteristic for collectors seeking originality and integrity. Combining cutting-edge engineering, iconic design, and exceptional robustness, the present Rolex Sea-Dweller Deepsea ref. 116660 represents not only a pinnacle of Rolex's professional watchmaking expertise, but also a significant milestone in the evolution of modern extreme dive watches, offering both technical prestige and strong collectible appeal.