The Rolex Explorer II, a watch synonymous with adventure and exploration, boasts a rich history. Two models, the reference 16550 and its successor, the 16570, stand as particularly compelling examples of this lineage. While both share a similar aesthetic and functionality, subtle yet significant differences distinguish them, making the choice between them a matter of careful consideration for collectors and enthusiasts alike. This comprehensive comparison will delve into the nuances of each reference, exploring their design, movements, market value, and overall appeal.
A Tale of Two Movements: The Heart of the Explorer II
One of the key distinctions between the Rolex Explorer II 16550 and 16570 lies in their movements. The 16550, produced from 1989 to 1991, houses the Rolex caliber 3085. This movement, a robust and reliable workhorse, is a derivative of the legendary caliber 3035, known for its accuracy and longevity. However, it lacks some of the refinements found in later movements. Its accuracy and durability are undeniable, representing the high standard of Rolex craftsmanship of the time. However, servicing can potentially be more expensive and time-consuming compared to its successor.
On the other hand, the 16570, produced from 1989 to 2011 (overlapping with the 16550 for a short period), utilizes the newer Rolex caliber 3185. This movement represents a significant advancement. The 3185 boasts improved shock resistance, a longer power reserve, and enhanced anti-magnetic properties. Its architecture also allows for easier servicing and maintenance, making it a more practical choice for the long term. The increased efficiency and reliability of the 3185 are significant advantages for the modern wearer. The smoother operation and improved accuracy are tangible improvements felt during daily wear.
Identical Shells, Different Souls: Case, Bezel, and Crystal
Despite the differences in their movements, the 16550 and 16570 share remarkable similarities in their external design. Both models feature the same robust 40mm Oyster case, renowned for its water resistance and durability. The crown, case back, bezel, and crystal dimensions are identical across both references. This consistent design language emphasizes Rolex’s commitment to maintaining the core identity of the Explorer II line throughout its evolution. The interchangeability of dials between the two models further underscores this shared design heritage, allowing for customization and personalization options for the discerning collector.
Dial Variations: A Collector's Delight
The dials of the 16550 and 16570 represent another area of subtle variation. While both generally feature the iconic Explorer II design – including the distinctive 24-hour hand for tracking a second time zone – variations in lume, font styles, and dial markers can distinguish specific examples. The 16550 dials often exhibit a slightly warmer, more vintage-toned lume, while the 16570 dials present a brighter, more modern luminous material. These differences, often subtle, are keenly observed by collectors and can significantly impact the value of individual watches. The black dial variants of both references remain highly sought-after, particularly those in excellent condition. The interchangeability of dials, however, allows for a degree of customization, permitting the blending of aesthetics from both references.
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