The Rolex Deepsea, a titan among dive watches, has captivated enthusiasts with its robust build, exceptional water resistance, and striking aesthetics. Within the Deepsea family, the blue dial variant holds a special place, commanding attention with its intense, captivating hue. However, discerning collectors will note subtle yet significant differences between the two primary iterations of the blue Deepsea: the reference 126660 and its predecessor, the reference 116660. This article delves deep into the nuances separating these two iconic timepieces, comparing their movements, cases, bezels, bracelets, and overall design philosophy to provide a comprehensive understanding of their distinctions.
Movement: The Heart of the Matter
The most significant difference between the 126660 and 116660 lies within their movements. The 116660 houses the Calibre 3135, a workhorse movement renowned for its reliability and precision. This self-winding mechanical movement boasts a power reserve of approximately 48 hours, a date function, and a robust construction capable of withstanding the rigors of extreme conditions. It's a proven movement, tested and trusted over decades of use in various Rolex models.
The 126660, on the other hand, features the revolutionary Calibre 3235. This movement represents a significant leap forward in Rolex's horological technology. It incorporates the brand's Chronergy escapement, a silicon-based component that offers increased efficiency and resistance to magnetic fields. The 3235 also boasts a longer power reserve of approximately 70 hours, a substantial improvement over the 3135. This extended power reserve is a boon for divers and collectors alike, offering greater flexibility and reducing the need for frequent winding. Furthermore, the 3235 features a redesigned oscillator, contributing to its enhanced precision and stability. The Paramagnetic blue Parachrom hairspring further enhances shock resistance and anti-magnetic properties, providing superior performance in demanding environments.
The difference in movements is not merely a matter of technical specifications; it reflects Rolex's ongoing commitment to innovation and improvement. The 3235 represents a significant technological advancement, offering enhanced performance, longevity, and reliability compared to its predecessor.
Case and Crystal: Robust Construction and Enhanced Protection
Both the 116660 and 126660 boast substantial 44mm Oyster cases, designed to withstand immense pressure. However, subtle differences exist. While both models feature the characteristic unidirectional rotating bezel and Triplock crown system, offering exceptional water resistance of 3900 meters (12,800 feet), the case construction itself has seen refinements in the 126660. Though the exact dimensions are similar, minor adjustments in the lugs and case profile might be perceived upon close examination. These are largely aesthetic refinements, enhancing the overall balance and wearability of the watch.
The crystal, a crucial element for a dive watch, also features subtle differences. Both models utilize a sapphire crystal, renowned for its scratch resistance. However, the 126660 features a slightly thicker and more robust crystal, further enhancing its resistance to impacts and pressure at extreme depths. This added protection contributes to the overall durability and reliability of the 126660.
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