The Rolex Oyster Perpetual Date Explorer II, even in its 30m water-resistant variant, represents a significant piece of horological history and a testament to Rolex's commitment to robust engineering and enduring design. While the 100m water resistance is the standard for modern Explorer II models, understanding the nuances of a 30m water-resistant version requires delving into its history, construction, and the implications of its reduced water resistance. This article will explore the intricacies of this specific model, focusing on its materials, design, potential variations, and its place within the broader context of the Rolex Explorer II line, addressing user queries regarding pricing and availability.
The Enigma of 30m Water Resistance:
The 30m (100ft) water resistance rating on a Rolex Explorer II is highly unusual. Modern Explorer II models boast a significantly higher 100m (330ft) rating, reflecting advancements in case construction and sealing technology. A 30m rating suggests the watch is more susceptible to water damage and should not be subjected to significant water exposure. This could be due to several factors:
* Vintage or Early Model: The most likely explanation is that the watch is a vintage or early production model. Rolex's manufacturing processes and quality control have evolved over the years, leading to improved water resistance in newer models. Older watches, even from reputable brands, may have seals that have degraded over time, reducing their water resistance.
* Service History: Improper servicing or the use of non-genuine parts during repairs could compromise the watch's water resistance. A seemingly minor issue with a gasket or crown seal could drastically reduce the effective water resistance.
* Case Damage: Physical damage to the case, crystal, or crown could also lead to a reduction in water resistance. Even a small crack or imperfection can allow water ingress.
Materials and Construction: Acciaio Oystersteel – Highly Corrosion-Resistant
Rolex’s commitment to quality is evident in the materials used in its watches. The phrase "Acciaio Oystersteel Altamente resistente alla corrosione" highlights the use of Oystersteel, a proprietary 904L stainless steel alloy. This alloy is significantly more resistant to corrosion than the 316L stainless steel used by many other watchmakers. Its superior corrosion resistance ensures the watch maintains its appearance and structural integrity even after prolonged exposure to the elements. This is crucial, even in a 30m water-resistant model, as corrosion can weaken the case and compromise its seals.
The Oyster case, a hallmark of Rolex design, is meticulously constructed to provide durability and water resistance. The caseback is securely screwed down, and the crown is fitted with a Triplock triple waterproofness system, further enhancing its resistance to water ingress. Even with a lower water resistance rating, these features contribute to the watch's overall robustness.
Variations and Models:
Determining the precise model and value of a 30m water-resistant Explorer II requires careful examination. Factors to consider include:
* Case Size: While the most common size for the modern Explorer II is 42mm, earlier models might have different dimensions.
* Dial Variations: Dial color and markings can vary significantly across different years and production runs. The presence of a date window also distinguishes it from earlier Explorer models.
* Movement: The movement caliber will provide further insight into the watch's age and potential value.
* Serial Number: The serial number engraved on the watch case can help determine the year of manufacture.
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