Rolex Deepsea 44 mm 136660BLUO Steel Blue

The Rolex Deepsea reference 136660BLUO is one of the most technically formidable wristwatches ever offered to the public, blending professional-grade deep-diving capability with the refined aesthetics that define the Rolex Oyster family. Introduced as the successor to the 116660, the 136660 generation brought meaningful engineering refinements while retaining the instantly recognizable Ringlock System case architecture that allows the watch to withstand pressures beyond 3,000 meters underwater — a specification shared by fewer watches than almost any other reference on the market.

At 44mm in diameter, the Deepsea wears with undeniable presence. The case is crafted entirely from Rolex's proprietary 904L Oyster steel, a corrosion-resistant alloy more commonly associated with high-end industrial applications than watchmaking, lending the case its characteristic mirror-bright finish that holds up to hard daily use. The screw-down crown, a hallmark of the Oyster case concept, ensures the hermetic seal that makes this level of water resistance achievable.

The dial of the 136660BLUO is the celebrated blue — a rich, saturated blue that transitions in certain lighting conditions to evoke the depths of the ocean. Luminous hour markers and hands ensure maximum legibility in low-light and underwater environments, a practical requirement for any serious professional dive instrument. The unidirectional black ceramic bezel provides scratch resistance, accurate elapsed-time tracking, and a bold visual contrast against the blue dial that has made this color configuration one of the most coveted variants in the Deepsea lineup.

Power comes from a certified Swiss automatic movement, delivering the precision and reliability for which Rolex has maintained an industry-leading reputation across decades. The watch travels on a stainless steel Oyster bracelet fitted with a Folding Oysterlock Safety clasp, which prevents accidental opening during demanding activities — a detail that underscores the functional intent behind every element of the Deepsea's design. The overall package is a watch that performs flawlessly whether worn on a professional dive or at a business dinner.

Bizak & Co. is proud to offer this brand-new, certified-authentic Rolex Deepsea 136660BLUO for sale online. As a dedicated luxury watch dealer, Bizak & Co. sources and authenticates each timepiece to the highest standards, giving buyers confidence in every purchase. Whether you are a seasoned collector adding a definitive dive watch to your rotation or a first-time buyer seeking the best the category has to offer, the Deepsea 136660BLUO represents exceptional value and enduring desirability. Reach out to our team at bizakandco.com to buy online or to arrange a personal consultation.