The Rolex Submariner 14060M holds a special place in the hearts of many collectors. Representing a period of transition and subtle evolution within the iconic Submariner line, the model's appeal is significantly enhanced by the nuanced differences between its two primary dial variations: the 2-liner and the 4-liner. These seemingly minor distinctions – the number of lines of text beneath the "Submariner" inscription – tell a story of changing materials, manufacturing techniques, and the ever-evolving identity of a legendary watch. Understanding these differences is crucial for any serious collector or enthusiast considering acquiring a 14060M.
The Genesis of the 14060M: A Move to the Calibre 3130
Before delving into the intricacies of the 2-liner and 4-liner dials, it's essential to establish the context of the 14060M's introduction. The 14060M, introduced in 1998, marked a significant step forward for the no-date Submariner. Its predecessor, the 14060, utilized the calibre 3000 movement. The 14060M, however, incorporated the newer calibre 3130, a movement boasting improvements in efficiency, reliability, and overall robustness. This upgrade was a key element in the evolution of the Submariner line, setting the stage for the subtle, yet significant, dial variations that would follow. The calibre 3130, with its Parachrom hairspring, offered enhanced resistance to shocks and magnetic fields, a considerable improvement over its predecessor. This represented a substantial advancement in watchmaking technology, making the 14060M a more resilient and accurate timepiece. This internal upgrade, while not immediately visible, significantly contributed to the overall desirability and value of the 14060M.
The Dial Transition: From Tritium to Luminova
The most significant visual difference between the early and later 14060M models lies in their dials. The transition from Tritium to Luminova luminous material is the defining characteristic that separates the 2-liner from the 4-liner. The 14060M initially featured Tritium lume, a radioactive substance used for decades in watch dials to provide illumination in low-light conditions. However, due to growing concerns regarding the health risks associated with Tritium, Rolex transitioned to Luminova, a non-radioactive, safer alternative. This shift occurred in 1999, marking a pivotal point in the production of the 14060M.
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