The Rolex Submariner, a legend in the world of horology, has seen numerous iterations over the decades. Two models, the 116613 and the 116613LB, often cause confusion amongst collectors and enthusiasts due to their subtle yet significant differences. Both are two-tone Submariners, combining the robustness of stainless steel with the luxurious gleam of yellow gold, but a closer examination reveals key distinctions in size, movement, and overall aesthetic. This article delves deep into the nuances of these two models, helping you understand their individual merits and guiding you through the market for pre-owned and new pieces.
Case Dimensions: A Tale of Two Sizes
One of the most immediate differences between the Rolex Submariner 116613 and the 116613LB lies in their case dimensions. The older reference, the 116613, boasts a 40mm diameter case with 20mm lug width. While 40mm might seem small by today's standards, it's important to remember the context of its release. The wider lugs on the 116613 contributed to a more substantial, almost imposing wrist presence. This model exudes a classic, vintage charm that resonates deeply with many collectors.
The newer reference, the 116613LB (LB signifying the blue bezel insert), features a slightly larger 41mm diameter case with a 21mm lug width. However, the crucial difference lies in the lug design. While the 116613 has broader, more pronounced lugs, the 116613LB features slimmer, more integrated lugs. This subtle change contributes to a more modern, streamlined aesthetic. The 1mm increase in diameter coupled with the slimmer lugs results in a watch that feels more comfortable and less bulky on the wrist, despite its slightly larger size. This difference is surprisingly noticeable when comparing the two side-by-side. The overall feel is more contemporary and less imposing than its predecessor.
Movement: A Technological Leap
Beyond the subtle differences in case dimensions, the heart of these two Submariners beats differently. The Rolex Submariner 116613 is powered by the Caliber 3135, a highly regarded movement known for its reliability and accuracy. This movement is a workhorse, capable of withstanding significant shock and stress, a testament to Rolex's commitment to robust engineering. It's a proven performer with a long history of dependable service.
The Rolex Submariner 116613LB, on the other hand, houses the Caliber 3235. This is a more modern movement, incorporating several advancements over the 3135. The 3235 boasts increased power reserve (approximately 70 hours compared to the 3135's 48 hours), improved efficiency, and enhanced shock resistance. The inclusion of the Chronergy escapement, a silicon-based component, further enhances its precision and anti-magnetic properties. This is a significant upgrade that reflects Rolex's continuous pursuit of horological excellence. The 3235 represents a notable step forward in terms of performance and longevity.
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