Rolex Sea-Dweller 16660 Black Dial Jul 1988

The Rolex Sea-Dweller ref. 16660 is a legendary professional diving instrument that represents a pivotal moment in Rolex's deep-sea exploration heritage. Crafted in 904L stainless steel with a robust 40mm case, this reference introduced the helium escape valve technology that would define the Sea-Dweller collection, making it capable of withstanding depths up to 4,000 feet (1,220 meters).

This reference features a distinctive matte black dial with bold white luminous hour markers and hands, designed for maximum legibility in the most challenging underwater conditions. The absence of a Cyclops lens over the date window at 3 o'clock maintains the watch's clean, tool-like aesthetic while preserving the structural integrity of the sapphire crystal. The iconic red "Sea-Dweller" text adds a striking visual accent against the deep black backdrop.

At its heart beats the Rolex caliber 3035, a robust automatic movement known for its reliability and precision. This Superlative Chronometer-certified movement delivers exceptional performance and has proven its durability through decades of professional use by saturation divers and deep-sea explorers worldwide.

Fitted with the iconic Oyster bracelet featuring the Oysterlock safety clasp, this Sea-Dweller ensures secure wearing during extreme conditions. Presented in excellent condition with 1988 papers, the 16660 represents the first generation of the modern Sea-Dweller and remains one of the most sought-after references among serious collectors and professional divers.

Every CHRONONATION purchase comes with the benefits of our Elevated Service Program, designed to give you confidence, protection and a seamless luxury experience:

• Next-day insured delivery anywhere in the United States, ensuring your timepiece arrives quickly and safely.
• An extended 3-year CHRONONATION warranty offering extended protection and long-term peace of mind.
• Complimentary, professionally prepared appraisal suitable for insurance documentation, created by our certified specialists.

If you're interested, feel free to request a video via text at 646-490-9300 or to view it in person, please visit us at our showroom in Midtown NYC, located at 20 West 47th Street, Suite #701B.