The Rolex Explorer II, a watch synonymous with exploration and adventure, has undergone several iterations since its inception. While maintaining its rugged and purposeful design, Rolex consistently refines its performance and functionality. This article focuses on a significant upgrade within the lineage: the incorporation of the calibre 3285 movement into the new generation of Explorer II watches. Contrary to the title's initial assertion, the new Explorer II *does not* use a calibre 3237 movement. The current model, and the one we will be examining in detail, features the superior calibre 3285. This clarification is crucial for accurate information dissemination.
A New Era for the Explorer II: The Calibre 3285
The new Rolex Explorer II, a watch that embodies the brand's commitment to precision and reliability, is powered by the in-house calibre 3285 movement. Released in 2018, the 3285 represents a significant leap forward in Rolex's horological capabilities. It's not simply a minor update; it’s a complete overhaul, incorporating numerous advancements that enhance accuracy, power reserve, and overall performance. This is a crucial element differentiating the current generation from its predecessors and solidifying its position as a top-tier professional tool watch.
The calibre 3285 is a self-winding mechanical movement, showcasing Rolex's mastery of traditional watchmaking techniques while seamlessly integrating modern technological advancements. Its architecture is a testament to years of research and development, resulting in a movement that surpasses previous generations in several key aspects. Let's delve deeper into its key features:
* Chronometer Certification: Like all Rolex movements, the calibre 3285 is a Swiss Officially Certified Chronometer (COSC). This rigorous certification ensures that the movement meets stringent accuracy standards, guaranteeing exceptional timekeeping performance within a specified range of tolerance. This certification is a hallmark of Rolex quality and reinforces the watch's reliability in even the most demanding environments.
* Paramagnetic Blue Parachrom Hairspring: One of the most significant improvements in the 3285 is the inclusion of the Paramagnetic blue Parachrom hairspring. This hairspring, made from a paramagnetic alloy, is ten times more resistant to shocks than a traditional hairspring and is less susceptible to magnetic fields. This enhances the movement's resilience and ensures consistent accuracy, even in environments with strong magnetic interference.
* Optimized Escape Wheel: The escape wheel plays a critical role in regulating the movement's timekeeping. The 3285 features an optimized escape wheel designed to improve efficiency and reduce friction. This results in improved energy transfer and contributes to the extended power reserve.
* High-Performance Escapement: The high-performance escapement system, a crucial component in any mechanical watch, is meticulously crafted to ensure smooth and precise operation. This contributes directly to the accuracy and reliability of the timekeeping.
* 70-Hour Power Reserve: The calibre 3285 boasts an impressive 70-hour power reserve. This allows the watch to continue running for three full days even if it's not worn, a considerable improvement over previous movements and a highly practical feature for travelers or those who may occasionally remove their watch.
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