The Rolex Sea-Dweller Deepsea, reference 136668LB, stands as a testament to Rolex's unwavering commitment to pushing the boundaries of horological engineering and luxury design. This particular model, crafted in 18-karat yellow gold, represents a pinnacle of achievement, combining the Deepsea's exceptional depth rating with the opulent gleam of precious metal. While less common than its stainless steel counterpart, the 136668LB commands attention and respect, embodying both rugged functionality and unparalleled elegance. This article will explore the intricacies of this remarkable timepiece, examining its technical specifications, design elements, market value, and place within the broader Rolex ecosystem.
Technical Prowess: Beyond the Gold Gleam
The 136668LB isn't simply a gold-plated Sea-Dweller; it's a meticulously engineered instrument capable of withstanding immense pressure. Its robust 44mm Oyster case, crafted from 18-karat yellow gold, is a marvel of engineering. This case, significantly thicker than standard dive watches, protects the movement from the crushing forces experienced at extreme depths. The patented Triplock winding crown, a hallmark of Rolex's professional dive watches, ensures water resistance to an astonishing 3,900 meters (12,800 feet). This depth rating places the 136668LB firmly in the realm of saturation diving, a testament to its exceptional engineering.
The watch's sapphire crystal, virtually scratch-proof, further contributes to its durability. Its cyclops lens, magnifying the date window, enhances readability even in challenging underwater conditions. The unidirectional rotatable bezel, with its distinctive ceramic insert, allows divers to accurately monitor their dive time, a crucial safety feature. The bezel's robust construction and precise click mechanism are critical for reliable timing in demanding environments. The caseback, securely fastened, completes the hermetic seal, protecting the movement from water ingress.
Inside the 136668LB beats the calibre 3135, a self-winding mechanical movement entirely developed and manufactured by Rolex. This movement, renowned for its reliability and precision, is chronometer-certified by COSC (Contrôle Officiel Suisse des Chronomètres), guaranteeing exceptional accuracy. Its Paramagnetic blue Parachrom hairspring, resistant to magnetic fields, ensures consistent performance even in challenging environments. The movement's power reserve of approximately 48 hours allows for extended periods of wear without the need for frequent winding. The meticulous finishing of the movement, visible through the exhibition caseback (on some variations), showcases Rolex's dedication to craftsmanship.
Design Aesthetics: Where Luxury Meets Functionality
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