The Rolex Submariner, a watch synonymous with rugged elegance and unparalleled reliability, has undergone subtle yet significant evolutions throughout its history. The introduction of new references, like the 116710LN (GMT-Master II) and the 116610LN (Submariner), brought with them a host of improvements, many of which are barely perceptible at first glance. One such improvement, and a key element of this discussion, is the enhanced sapphire crystal. This article will delve deep into the specifics of the crystal used on these models, exploring its properties, comparing it to previous iterations, and contextualizing its significance within the broader landscape of Rolex Submariner history and the current market. We'll also touch upon relevant aspects like the overall design changes in the 116610LN and the implications for collectors and enthusiasts.
Understanding the Rolex Sapphire Crystal:
The sapphire crystal used on the Rolex 116710LN and 116610LN represents a pinnacle of horological engineering. Sapphire, a crystalline form of aluminum oxide, boasts exceptional hardness (second only to diamond on the Mohs scale), making it highly resistant to scratches. This is crucial for a dive watch intended to withstand the rigors of underwater exploration and everyday wear. Unlike acrylic crystals used in older watches, sapphire is virtually impervious to the everyday abrasions that can dull or damage a watch face over time. The near-perfect clarity of the sapphire crystal ensures optimal legibility of the dial, even in low-light conditions.
However, the sapphire crystal on the 116610LN and 116710LN isn't just a simple piece of sapphire; it’s meticulously engineered with several key features:
* Anti-Reflective Coating: This is a significant advancement over earlier Submariner models. The anti-reflective coating, typically applied to both the inner and outer surfaces of the crystal, dramatically reduces glare and reflections, enhancing readability in bright sunlight or other challenging lighting conditions. This improvement is particularly noticeable when comparing the 116610LN to its predecessor, the 14060M, which featured a less effective, or absent, anti-reflective treatment.
* Dome Shape: The slightly domed shape of the crystal is not just an aesthetic choice; it contributes to the watch's overall water resistance. The curvature helps distribute pressure more evenly across the crystal, further enhancing its durability and reliability under pressure.
* Thickness: While the exact thickness might vary slightly depending on the specific model and year of production, the sapphire crystal on the 116610LN and 116710LN is designed for optimal balance between robustness and aesthetics. It’s thick enough to provide substantial protection but not so thick as to significantly alter the watch's profile.
Comparing the Crystal Across Generations:
The evolution of the Rolex Submariner crystal is a fascinating study in material science and design refinement. Early Submariners utilized acrylic crystals, which were prone to scratching. Later models transitioned to sapphire crystals, but the anti-reflective coating was often less sophisticated. The 116610LN and 116710LN represent a significant leap forward in this regard. The improved anti-reflective coating on these models results in a noticeably clearer and less reflective crystal, enhancing the overall user experience.
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